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PI LockBolts & Collars

Nuts

Special Fasteners

Special Fasteners

PI LockBolts & Collars

PI LockBolts & Collars

Bolts & Screws

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Poleline Hardware

Poleline Hardware

bolts-screws-high-tensile-track-shoe-nut

High Tensile Track Shoe Nut

High Tensile Track Shoe Nuts are robust fasteners designed to provide exceptional performance in heavy-duty applications. Manufactured with precision, these nuts and bolts offer high durability and strength, making them ideal for construction, industrial machinery, and heavy equipment. With features like a lock bolt mechanism, these fasteners ensure safety and reliability under extreme conditions. Pankaj International, the best fastener manufacturer in India and worldwide, guarantees quality and performance for all your fastening needs.

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nuts-bolts-hex-weld-nut

Hex Weld Nut

Hex weld nuts are specialized fasteners designed for welding onto metal surfaces, providing a secure and permanent threaded connection. Featuring a hexagonal shape and internal threads, they are ideal for applications requiring robust fastening solutions, particularly in the automotive, construction, and machinery industries. Their design ensures stability and resistance to loosening under vibration, making them essential components in various industrial assemblies.

Size Range

Diameter

Metric: M8 to M16
Inch: 0.3 ” to 0.6 ”

Length

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nuts-bolts-flange-nut

Flange Nut

A flange nut is a specialized fastener featuring an integrated flange that acts as a built-in washer. This design distributes the clamping load over a wider area, reducing the risk of damage to the material being fastened. Flange nuts are commonly used in various industries and applications where vibration resistance, secure fastening, and ease of installation are crucial. They are particularly beneficial in applications where a flat washer would be difficult to install or where space constraints exist. By eliminating the need for a separate washer, flange nuts streamline the fastening process, saving time and reducing the number of components required. Their versatility and efficiency make them a preferred choice in many mechanical and structural applications.

Size Range

Diameter

Metric: M5 to M20
Inch: 0.2 " to 0.8 "

Length

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nuts-bolts-hex-nut

Hex Nut

A hex nut is a six-sided internally threaded fastener designed to secure components by threading onto a bolt or screw. Its hexagonal shape allows for easy tightening with standard wrenches or sockets. Hex nuts are widely used in construction, machinery, and automotive applications due to their versatility and reliability. They come in various grades, such as Grade 2, Grade 5, and Grade 8, each offering different mechanical properties to suit specific requirements. Common materials include carbon steel, stainless steel, and brass, providing options for corrosion resistance and strength. Hex nuts are available in both standard and metric sizes, accommodating a wide range of bolt dimensions. Their straightforward design and ease of use make them a staple in fastening solutions across multiple industries.

Size Range

Diameter

Metric: M6 to M72
Inch: 0.2 " to 2.8 "

Length

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nuts-bolts-heavy-hex-nut

Heavy Hex Nut

A heavy hex nut is a six-sided internally threaded fastener that is both wider and thicker than the same-sized finished hex nut. This design provides increased strength and bearing surface area, making heavy hex nuts ideal for large diameter and high-strength bolt applications. They are commonly used in structural and heavy-duty applications where enhanced load-bearing capacity is essential. Heavy hex nuts are available in various grades, including ASTM A563 Grade DH, ASTM A194 Grade 2H, and ASTM F594, each offering specific mechanical properties to suit different requirements. These nuts are typically used with bolts of the same grade to ensure compatibility and optimal performance. The heavy hex nut's robust construction ensures secure and reliable fastening in demanding environments.

Size Range

Diameter

Metric: M4 to M80
Inch: 1/2" to 3"

Length

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nuts-bolts-jam-nut

Jam Nut

A jam nut is a specialized fastener designed to prevent loosening and maintain the integrity of threaded connections. Typically used in combination with a standard nut, the jam nut is tightened against the regular nut to secure the fastened parts in place. This two-nut system provides an added layer of security, preventing the main nut from loosening due to vibration or other external forces. Jam nuts are commonly used in automotive, machinery, and construction applications, where secure and reliable fastening is critical. Made from various materials like steel, stainless steel, and alloy, jam nuts offer durability and strength to withstand harsh environments. Their small size and cost-effective design make them a popular choice for numerous industries, ensuring tight and secure connections in a range of applications.

Size Range

Diameter

Metric: M2 to M48
Inch: 0.1 " to 2"

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nuts-bolts-serrated-flange-nut

Serrated Flange Nut

Serrated flange nuts are specialized fasteners featuring an integrated flange with serrations on the bearing surface. This design ensures a secure grip, preventing loosening under vibration. Ideal for applications requiring high torque and stability, these nuts eliminate the need for separate washers, streamlining assembly processes. Available in various materials and sizes, serrated flange nuts are essential in industries like automotive, construction, and machinery.

Size Range

Diameter

Metric: M8 to M22
Inch: 0.3 " to 7/8 "

Length

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nuts-bolts-square-weld-nut

Square Weld Nut

Square Weld Nuts are robust, four-sided fasteners featuring uniform projections at each corner, designed for efficient welding onto metal surfaces. These nuts ensure a secure and permanent attachment, making them ideal for applications requiring high-strength fastening solutions. Manufactured with precision, they are compatible with various bolt sizes and types, including hex bolts and carriage bolts, providing versatility in assembly processes. Pankaj International, a leading fastener manufacturer in India and worldwide, offers high-quality Square Weld Nuts that meet stringent industry standards.

Size Range

Diameter

Metric: M8 to M16
Inch: 0.3 ” to 0.6 ”

Length

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nuts-bolts-shear-nut

Shear Nut

A shear nut, also known as a breakaway or tamper-resistant nut, is a specialized fastener designed to enhance security by preventing unauthorized removal. Its unique construction allows the hexagonal head to shear off upon reaching a predetermined torque, leaving a tamper-resistant cone shape. This feature makes shear nuts ideal for applications where permanent and secure fastening is essential, such as in public infrastructure, automotive assemblies, and safety-critical components. By utilizing shear nuts, industries can ensure that installations remain intact and secure, even under adverse conditions. Their application extends across various sectors, including electronics, plumbing, and automotive industries, where preventing over-tightening and unauthorized tampering is crucial.

Size Range

Diameter

Metric: M6 to M20
Inch: 0.8 " to 0.8 "

Length

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special-fasteners-csk-socket-bolt

CSK Socket Bolt

Also known as a flat-head screw, a countersunk screw is a type of screw that's designed to rest flush with the object or surface in which it's inserted. They are called “countersunk screws” because they “sink” into objects and surfaces. They feature a flat head that tapers along the shaft. CSK socket bolts, also known as flat-head screws, are designed to rest flush with the surface they are inserted into, providing a sleek and unobtrusive finish. These countersunk screws feature a flat head that tapers along the shaft, allowing them to "sink" seamlessly into objects and surfaces. Ideal for applications where a smooth, level surface is required, Pankaj International offers high-quality CSK socket bolts that ensure reliable and aesthetically pleasing results. As a leading fasteners manufacturer in Ludhiana, we provide a comprehensive range of high tensile bolts, nuts, screws, and washers.

Size Range

Diameter

M3 to M20

Length

50 mm to 175 mm

nuts-bolts-liner-bolt

Liner Bolt

Liner bolts are heavy-duty fasteners primarily used in the mining, construction, and industrial sectors to secure liners within machinery or equipment. These bolts feature a long, cylindrical shaft and are designed to withstand significant pressure and tension, making them essential for applications where durability and strength are critical. Liner bolts are often used to fasten liners in crushers, mills, and other heavy machinery where intense vibrations and high-impact forces are common. They are typically made from high-strength materials such as alloy steel or stainless steel to ensure long-term performance in demanding environments. The bolt heads are often designed to be large enough to accommodate specific wrenches or sockets for easier installation and removal.

Size Range

Diameter

Metric: M30 to M48
Inch: 1.2" to 1.9"

Length

Metric: 50 mm to 600 mm
Inch: 2" to 24"

socket-head-shoulder-screw

Socket Head Shoulder Screw

Socket Head Shoulder Screws are a versatile and highly reliable fastener solution used in a wide range of applications, particularly in machinery and mechanical engineering. These screws consist of a cylindrical shoulder, which separates the head from the threaded shaft, providing stability and strength to the assembly. The unique design of the socket head allows for efficient torque application using an Allen wrench or a socket, making installation and removal simple and secure. The shoulder portion of the screw provides a smooth, bearing surface for components to rotate or slide along, making them ideal for precise mechanical movements. These screws are widely used in robotics, automotive, and aerospace industries due to their ability to withstand high levels of stress and tension.

Size Range

Diameter

Metric: M5 to M20

Length

Metric: 15 mm to 100 mm

special-fasteners-oval-neck-track-bolt

Oval Neck Track Bolt

Oval Neck Track Bolts are specialized fasteners designed for secure assembly in track-based systems, such as railway tracks, heavy machinery, and industrial equipment. The unique oval-shaped neck prevents rotation during installation, ensuring a firm and stable connection. Manufactured by Pankaj International, a best fastener manufacturer in India, these bolts are known for their high tensile strength, corrosion resistance, and precise dimensions. Our Oval Neck Track Bolt size charts, drawings, and specifications offer everything needed to make informed decisions for your projects.

Size Range

Diameter

M10 to M22

Length

10" to 22"

cap-screws-plate-screw-rail-screw

Railway Sleeper Screw

Railway sleeper screws, also known as track screws, are specialized fasteners designed to secure railway tracks to wooden or concrete sleepers. These screws are integral to railway infrastructure, providing high durability and ensuring track stability under heavy loads and constant vibrations. Manufactured using premium-grade materials like high-carbon steel or stainless steel, these screws can withstand extreme environmental conditions, including moisture and temperature variations. Their precision engineering guarantees excellent tensile strength and a reliable grip, preventing track misalignments that could compromise safety. Railway sleeper screws are available in various sizes and dimensions to meet global standards such as DIN, Russian, and German specifications, ensuring compatibility with diverse railway systems worldwide.

Size Range

Diameter

Metric: M19 to M25
Inch: 0.7" to 1"

Length

Metric: 140 mm to 200 mm
Inch: 5..5" to 7.9"

special-fasteners-point-flange-bolt

12 Point Flange Bolt

12 Point Flange Bolts are advanced fasteners designed to deliver exceptional strength and secure connections in high-stress applications. Their unique head design, featuring a 12-point drive, allows for superior torque transfer and precise installation, especially in tight or confined spaces. These bolts incorporate an integrated flange that distributes clamping pressure evenly, eliminating the need for separate washers and enhancing stability under dynamic loads. Manufactured to exacting standards by Pankaj International, these bolts are widely used in industries such as automotive, aerospace, and heavy machinery. Available in a range of materials, including stainless steel and high-grade alloys, 12 Point Flange Bolts provide excellent resistance to corrosion, wear, and mechanical stress. Customers can explore detailed tables, technical drawings, and dimensional charts to select the perfect bolt for their requirements. Their compact design, combined with unmatched performance, makes these bolts indispensable in applications demanding durability and reliability.

Size Range

Diameter

1/4 " to 1-1/2"

Length

30 mm to 175 mm

special-fasteners-nib-bolt

Nib Bolt

Nib Bolts are high-performance fasteners specifically designed for heavy-duty industrial applications. Characterized by their distinctive nibbed design, these bolts provide exceptional grip and enhanced locking performance. Manufactured by Pankaj International, a trusted name in fastener manufacturing in India, Nib Bolts deliver superior durability, high tensile strength, and resistance to wear and tear. With detailed size charts, drawings, and images available, selecting the perfect Nib Bolt for your project is effortless.

Size Range

Diameter

M6 to 24

Length

2" to 20"

special-fasteners-serrated-flange-bolt

Serrated Flange Bolt

Serrated Flange Bolts are innovative fasteners that combine a bolt with an integrated flange, which features serrated edges. These serrations provide an additional locking effect, making them ideal for applications where vibration resistance and secure connections are crucial. Typically used in automotive, construction, and heavy machinery applications, Serrated Flange Bolts are designed to ensure long-lasting performance and stability. Pankaj International manufactures high-quality Serrated Flange Bolts, offering a variety of sizes and specifications to meet the demands of diverse industries. Explore detailed Serrated Flange Bolt tables, drawings, and specifications to find the right fastener for your needs.

Size Range

Diameter

M8 to M20

Length

75mm to 150mm

special-fasteners-tension-control-bolt

Tension Control Bolt

Tension Control Bolts (TCBs) are high-strength fasteners used in structural steel applications, particularly for securing steel beams and other critical components in bridges, buildings, and industrial structures. Known for their reliability and ability to maintain the correct tension during installation, tension control bolts are an essential choice for safety and stability in construction projects. Manufactured to meet high tensile strength and durability requirements, these bolts are engineered to prevent loosening over time, making them ideal for applications requiring precision and long-term performance. At Pankaj International, we provide premium quality Tension Control Bolts and related products, including Tension Control Bolt Tables and detailed drawings to ensure accurate installation.

Size Range

Diameter

M12 to M36

Length

75 mm to 200 mm

special-fasteners-button-head-socket-screw

Button Head Socket screw

Button Head Socket Screws are premium-grade fasteners known for their low-profile and aesthetically pleasing rounded heads. Designed for a wide range of industrial applications, these screws offer excellent strength, durability, and precision. Crafted to meet stringent industry standards, Button Head Socket Screws by Pankaj International deliver unmatched performance and reliability. Detailed size charts, drawings, and images are available, ensuring effortless selection and application.

Size Range

Diameter

M3 to M16

Length

50mm to 175mm

square-bolt-with-dog-point

Square Bolt with Dog Point

Square bolts with a dog point, also known as square head bolts, are designed for secure and precise fastening in various applications. The square head allows for easy handling with a wrench, while the dog point, which is a cylindrical tip with a flat end, ensures accurate alignment and prevents rotation within the assembly. Ideal for heavy-duty and industrial applications, these bolts provide robust performance and stability. Pankaj International offers high-quality square bolts with dog points, engineered for durability and reliability. As a leading fasteners manufacturer in Ludhiana, India, we provide dependable solutions for diverse fastening needs.

Size Range

Diameter

M5 to M24

Length

25 mm to 300 mm

special-fasteners-tee-square-head-bolt

Tee Square Head Bolt

Tee Square Head Bolts are a unique type of fastener designed for specialized applications where a strong, secure connection is essential. With a square-shaped head, these bolts offer superior grip and ease of use in specific structural and mechanical environments. Whether used in heavy-duty machinery or construction projects, Tee Square Head Bolts are highly favored for their strength and stability. Pankaj International offers a comprehensive range of Tee Square Head Bolts, ensuring durability, high tensile strength, and precision for all your industrial needs. Explore our Tee Square Head Bolts table, detailed drawings, and product information to find the right fit for your requirements.

Size Range

Diameter

Inch : M6 to M20
Metric : 0.2 "to 0.8 "

Length

Inch : 20 mm to 300 mm
Metric : 7/8"to 12"

special-fasteners-banjo-bolt

Banjo Bolt

Banjo Bolts, a critical component in hydraulic and fluid transfer systems, are precision-engineered fasteners designed to facilitate efficient fluid flow under high-pressure conditions. Their unique design combines strength, versatility, and leak-free performance. Manufactured by Pankaj International, these bolts meet global standards for reliability and durability, making them ideal for automotive, industrial, and aerospace applications. Customers can access detailed size charts, drawings, and technical tables for accurate selection.

Size Range

Diameter

M10 to M30

Length

15 mm to 200 mm

lock-bolts-sd-lockbolt-pins

PI SD Lockbolt Round Head

The PI SD LockBolt Round Head is a high-strength fastener designed for applications requiring maximum durability and vibration resistance. Its round head design provides a sleek, low-profile finish, ideal for structural, automotive, and heavy machinery industries. This PI lockbolt offers superior grip strength, making it perfect for high-stress environments like construction, bridges, and transport vehicles. Manufactured to international standards, it delivers long-lasting performance under extreme conditions. Its weather-resistant coating ensures protection against corrosion, making it suitable for outdoor and marine applications. The PI SD Lock Bolt Round Head is a reliable fastening solution for modern industrial needs.

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lock-bolts-lock-bolt-pins-truss-head

PI SD Lockbolt Truss Head

The PI SD LockBolt Truss Head is a versatile high-strength fastener engineered for superior performance in heavy-duty and structural applications. Featuring a wide, low-profile truss head, it delivers excellent load distribution, making it a trusted choice for vibration-prone environments. Designed for industries such as construction, transport, and marine, this PI lockbolt ensures maximum grip and stability under extreme conditions. Manufactured by Pankaj International, one of the best fastener manufacturers in India, it complies with international standards, offering durability and corrosion resistance. The PI SD Lock Bolt Truss Head is the perfect solution for projects requiring long-lasting and secure fastening systems.

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sd-lock-bolt-csk-head

PI SD Lockbolt CSK Head

The PI SD Lock Bolt CSK Head is a precision-engineered fastener designed for flush surfaces and high-strength applications. Featuring a countersunk (CSK) head, this bolt provides seamless integration with structural components, making it ideal for industries requiring smooth, streamlined finishes. Popular in automotive, construction, and marine sectors, the PI SD Lock Bolt CSK Head offers excellent vibration resistance and long-lasting durability. Manufactured by Pankaj International, recognized as one of the best fastener manufacturers in India, this product ensures reliability under extreme conditions, making it a preferred choice for professionals worldwide.

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lock-bolts-collars-lockbolt-pins

PI Large Diameter Lockbolt Round Head

The PI Large Diameter LockBolt Round Head redefines fastening for heavy-duty applications with its precise engineering and robust design. Crafted to ensure exceptional load distribution, this PI lockbolt is perfect for securing components in bridge construction, marine vessels, and aerospace industries. Manufactured by Pankaj International, a global leader in fasteners, it meets stringent standards such as DIN 6914 (Deutsches Institut für Normung), GOST 52644 (Russian State Standards), and ISO 3269 for unparalleled reliability and safety. Trust in a PI lockbolt designed to tackle the toughest structural challenges.

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lock-bolts-collars-thruss-head

PI Large Diameter Lockbolt Large Truss Head

The PI Large Diameter Lock Bolt Large Truss Head is a high-strength fastener designed for heavy-duty applications across construction, marine, and aerospace industries. Its distinctive large truss head provides exceptional holding power and enhanced load distribution, making it ideal for critical projects. Manufactured by Pankaj International, the best fastener manufacturer in India, this PI lockbolt delivers reliability, durability, and compliance with ISO, BS , DIN ANSI & JIS ensuring exceptional performance in even the most demanding environments.

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Diameter

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lock-bolt-csk-head

PI Large Diameter Lockbolt CSK head

The PI Large Diameter LockBolt CSK Head is an innovative solution for securing heavy-duty structures, ensuring optimal strength and vibration resistance. Designed for industrial applications like construction, marine, and railway infrastructure, this PI lock bolt combines high tensile strength with a sleek countersunk head (CSK) profile for flush installations. Pankaj International, the best fastener manufacturer in India, delivers this product with precision engineering and compliance with international standards like ISO, BS , DIN ANSI & JIS .

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lock-bolts-collars-lock-bolt-collars

PI Collars Standard

The PI Collars Standard is a foundational component in structural fastening systems, delivering secure and reliable connections in high-demand applications. Known for their seamless compatibility with PI lockbolts, these collars are engineered for industries such as construction, railways, and heavy machinery. Manufactured by Pankaj International, the best fastener manufacturer in India, these collars meet international standards like ISO, BS , DIN ANSI & JIS specifications, ensuring durability and performance in challenging conditions. With their high-tensile strength and vibration resistance, Collars-Standard is your go-to solution for robust fastening needs.

Size Range

Diameter

1/4 " to 1-3/8 "

Length

--

lock-bolts-collars-flanged

PI Collar Flanged

The PI Collar Flanged is a versatile and high-strength fastening solution designed to complement PI lockbolts in structural and heavy-duty applications. Its unique flanged design ensures superior grip and load distribution, making it ideal for industries like construction, aerospace, and automotive. Manufactured by Pankaj International, the best fastener manufacturer in India, these collars excel in providing vibration resistance and long-lasting durability, even in extreme environments. With a focus on quality and adherence to international standards, Collar-Flanged fasteners deliver unmatched performance for critical applications.

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lock-bolts-installation-tools

PI Installation Tools

PI Installation Tools from Pankaj International offer a cutting-edge solution for securing PI lockbolts with precision and speed. Designed for seamless bolt installation, these tools provide consistent performance across heavy-duty industries such as construction, aerospace, and automotive manufacturing. Crafted to meet the demands of high-tensile fastening, our tools ensure minimal downtime and exceptional accuracy. Engineered for reliability, these tools are a perfect companion for installing structural PI lockbolts, vibration-resistant fasteners, and more.

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nose-assembly-and-parts

PI Nose Assembly and Parts

The Nose Assembly and Parts offered by Pankaj International are meticulously crafted components essential for precise PI lockbolt installations. Designed to pair seamlessly with installation tools, these parts ensure durability, accuracy, and reliability across diverse applications. From heavy-duty industrial projects to specialized aerospace and marine environments, our nose assemblies cater to all PI lockbolt sizes and types. Their ergonomic design facilitates smooth operation, reducing operator fatigue while ensuring optimal performance.

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Diameter

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lockbolts-lockbolt

PI Hydraulic Powerpack

The PI Hydraulic Powerpack from Pankaj International is an advanced, high-performance solution engineered to power PI lockbolt installation tools. Designed for efficiency and reliability, this compact yet robust unit ensures smooth operation for various industrial fastening applications. Built with precision, the powerpack offers consistent hydraulic pressure, minimizing operational downtime while maximizing productivity. Its user-friendly controls and durable components make it a preferred choice for demanding environments like manufacturing plants and heavy machinery assembly lines.

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Diameter

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Length

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cap-screws-hex-head-bolt

Hex Head Bolt

Hex Head Bolts are versatile, high-performance fasteners designed to deliver exceptional strength and durability across a variety of applications. With a distinctive six-sided head for easy wrenching, these bolts are ideal for construction, manufacturing, and industrial projects. Manufactured from high-tensile steel, they offer resistance to corrosion, ensuring longevity even in harsh environments. Trusted for their reliability and compliance with standards like DIN and ISO , Pankaj International stands as the best fastener manufacturer in India, providing premium solutions for all fastening needs.

Size Range

Diameter

Metric : M10 to M56
Inch : 0.4 "to 2.2 "

Length

Metric: 20 mm to 300 mm
Inch : 7/8" to 12"

cap-screws-socket-head-cap-screw

Socket Head Cap Screw

The Socket Head Cap Screw is a high-strength fastener designed for applications requiring a precise and secure fit. Featuring a cylindrical head with a hexagonal socket, this screw allows for high torque installation and is commonly used in tight spaces where other types of bolts cannot be used. With excellent corrosion resistance, these screws are ideal for automotive, construction, and machinery applications. Pankaj International offers high-quality socket head cap screws that meet stringent international standards, ensuring reliability and longevity in demanding environments.

Size Range

Diameter

Metric: M6 to M42
Inch: 5/16" to 2"

Length

Metric: 20 mm to 300 mm
Inch: 7/8 to 12"

fasteners-hsfg-assembly

HSFG Bolt Assembly

The HSFG Bolt Assembly (High-Strength Friction Grip) is designed for applications requiring high load-bearing capacity and precision in structural connections. These assemblies include a bolt, nut, and washer, ensuring reliable friction-based fastening without relying on thread shear. Widely used in bridges, steel frameworks, and industrial plants, they comply with global standards like DIN and ISO. At Pankaj International, we deliver customized HSFG Bolt Assemblies engineered for heavy-duty construction projects worldwide.

Size Range

Diameter

Metric: M12 - M36

Length

length upto 10

nuts-bolts-hexagon-flange-bolt

Hexagon Flange Bolt

The Hexagon Flange Bolt is a robust fastening solution designed to provide exceptional grip and strength in high-stress environments. With a hexagonal head and an integrated flange, these bolts ensure optimal load distribution and resist loosening under vibration. Engineered for industrial and structural applications, they offer excellent corrosion resistance with options for galvanized and zinc-coated finishes. Whether in automotive, construction, or heavy machinery, the Hexagon Flange Bolt ensures reliable performance and longevity, meeting stringent international standards.

Size Range

Diameter

M5 to M20

Length

20 mm to 200 mm

bolts-carriage-bolt

Carriage Bolt

Carriage bolts are integral components in various construction and industrial applications. Known for their unique rounded heads and smooth, square necks, these bolts are specifically designed to prevent rotation when installed. They are widely used for securing wood to metal, making them a preferred choice in structural projects and heavy-duty assemblies. The square neck under the head of the bolt locks the bolt in place, ensuring it remains stationary as the nut is tightened. Carriage bolts are ideal for applications where high tensile strength and resistance to loosening are crucial. Manufactured from high-quality stainless steel or carbon steel, these bolts offer impressive durability and strength, making them a reliable fastening solution in construction, automotive, and heavy machinery industries. The versatility of carriage bolts makes them suitable for a variety of uses, including securing metal plates, wooden beams, and structural components in bridges, railways, and buildings. Whether used in industrial fasteners or as part of a heavy-duty fastening system, these bolts provide excellent performance even under extreme conditions. Their ability to resist corrosion and their excellent load-bearing capacity further elevate their status as one of the most trusted fastening options. Carriage bolts are designed to meet various international standards such as DIN, ASTM, and ISO, ensuring they offer the quality and precision required for industrial use.

Size Range

Diameter

M5 to M16
0.2 " to 0.6 "

Length

20 mm to 200 mm 1" to 8"

cap-screws-hex-head-screw

Hex Head Screw

The Hex Head Screw is a versatile and durable fastener with a hexagonal-shaped head, ensuring easy installation and removal using a wrench or socket tool. Designed for high-strength applications, these screws are ideal for construction, automotive, and industrial projects. With options in zinc-coated, galvanized, and stainless steel finishes, they provide excellent resistance to corrosion. At Pankaj International, we manufacture Hex Head Screws to meet global standards like DIN and ISO, delivering quality fasteners for demanding environments.

Size Range

Diameter

Metric: M8 to M52
Inch: 0.3 “ to 2 "

Length

Metric: 20 mm to 300 mm
Inch: 7/8" to 12

heavy-hex-structure-bolt

Heavy Hex Structural Bolt

Heavy Hex Structural Bolts are the backbone of large-scale construction and industrial projects, providing unmatched durability and strength for critical connections. With a wider hexagonal head for increased clamping force, these bolts excel in securing steel-to-steel connections in bridges, buildings, and infrastructure projects. Crafted with high-tensile steel, coated with corrosion-resistant finishes, and compliant with global standards like ASTM and DIN these bolts are engineered for precision and reliability. Choose Pankaj International, the best fastener manufacturer in India, for bolts that guarantee performance under pressure.

Size Range

Diameter

Metric : M16 to M36
Inch: 0.6 " to 1.4 "

Length

Metric : 20 mm to 300 mm
Inch: 7/8" to 12"

nuts-bolts-high-tensile-track-shoe-bolt

High Tensile Track Shoe bolt

Engineered for superior performance, High Tensile Track Shoe Bolts ensure reliable fastening in heavy machinery applications. Manufactured from high-grade materials, these bolts provide exceptional durability, even under extreme operational conditions. Their high-tensile strength guarantees a secure hold in demanding environments such as construction, mining, and agriculture. Each bolt is designed to meet ISO-certified standards, offering optimal resistance to wear, tear, and corrosion. Ideal for critical applications, these bolts are precision-engineered to deliver reliability and consistency in every installation.

Size Range

Diameter

Metric: M16 to M42
Inch: 5/16" to 2"

Length

Metric: 20 mm to 200 mm
Inch: 1" to 8"

bolts-screws-square-head-bolt

Square Head Bolt

The Square Head Bolt is a highly versatile fastening solution designed for a wide range of industrial and construction applications. Known for its robust design, this bolt features a square head that provides a firm grip, preventing the bolt from rotating when tightened. Square head bolts are ideal for use in applications requiring high-strength fasteners, ensuring a secure and durable hold. Available in various sizes, materials, and finishes, these bolts meet global standards for quality and performance. Whether used in machinery, automotive, or infrastructure, the square head bolt guarantees reliability and strength for critical fastening needs. Its unique design allows for easy installation and maintenance in demanding environments, making it a preferred choice for engineers and construction professionals worldwide.

Size Range

Diameter

1/4 " to 1/1/2 " inch.

Length

20 mm to 300 mm

bolt-guard-rail-bolt-crash-barrier-bolt

Guard Rail Bolt/Crash Barrier Bolt

Guard Rail Bolts, also known as Crash Barrier Bolts, are the unsung heroes of road safety. Designed to firmly secure metal barriers, these bolts play a critical role in preventing accidents by keeping guard rails intact during high-impact scenarios. Manufactured with precision and durability, these bolts are crafted to meet international standards, including EN and ISO, ensuring maximum safety on highways, bridges, and industrial zones. At Pankaj International, we don’t just make fasteners—we engineer trust and safety into every bolt.

Size Range

Diameter

Metric: M8 to M20
Inch: 5/16" to 3/4"

Length

Metric: 20 mm to 300 mm
Inch: 1" to 8"

bolts-screws-fish-bolt

Fish Bolt

Fish bolts are a vital component in fastening systems, widely used in industries like railways, mining, and construction. Manufactured with high-tensile strength and precision, these bolts ensure seamless fastening solutions for heavy-duty applications. Fish bolts from Pankaj International, a largest bolt company, are available in various finishes, including zinc-coated bolts and galvanized screws, for durability and corrosion resistance. With compliance to ISO-certified bolts, DIN 933 bolts, and GOST standards for Russia, these fasteners are perfect for demanding environments, from renewable energy projects to structural steel installations. Contact us for affordable bolts and screws or explore custom screw manufacturing options.

Size Range

Diameter

M10 to M22

Length

4" to 12"

bolts-screws-foundation-bolts

Foundation Bolts

Foundation bolts are essential fasteners used to secure heavy machinery and structural elements to concrete foundations. Designed for strength and durability, these bolts provide reliable anchoring for applications in construction, bridges, industrial machinery, and power plants. Available in various types like J-bolts, L-bolts, and anchor bolts, they ensure a firm grip and lasting stability. Manufactured with high-tensile materials, foundation bolts meet DIN, ISO, and Russian standards, ensuring compatibility with global applications.

Size Range

Diameter

M10 to M48

Length

6" to 48"

bolts-screws-round-head-rivit

Round Head Rivit

Round Head Rivets are reliable and versatile fasteners widely used in industries requiring robust joint strength. Manufactured by Pankaj International, these rivets deliver excellent shear and tensile performance, making them ideal for heavy-duty applications. Built to withstand extreme environments, they are crafted from stainless steel, carbon steel, and aluminum alloys. Perfect for railways, bridges, marine structures, and industrial machinery, round head rivets ensure durability, secure connections, and long-lasting results.

Size Range

Diameter

1/4 " to 3/4 "

Length

10 mm to 500 mm

bolts-screws-shank-studs

Shank Studs

Shank Studs are precision-engineered fasteners designed for diverse industrial applications. Manufactured by Pankaj International, these versatile fasteners deliver high tensile strength, exceptional durability, and resistance to harsh environmental conditions. Ideal for structural, automotive, and marine projects, shank studs ensure secure fastening with consistent performance. Crafted from premium materials and adhering to DIN, ISO, and GOST standards, these stainless steel fasteners provide unmatched reliability across construction, heavy machinery, and vibration-resistant applications.

Size Range

Diameter

1/4 " to 2 "

Length

25 mm to 500 mm

fasteners-welding-shear-connecting-stud

Welding Shear Connecting Stud

The Welding Shear Connecting Stud is a specialized fastener used to create strong, load-bearing connections in composite construction applications. Designed for seamless integration with steel and concrete, these studs are critical in ensuring shear resistance in bridges, buildings, and industrial structures. At Pankaj International, our Welding Shear Connecting Studs are precision-engineered for durability, compatibility with automated welding systems, and compliance with standards like EN ISO and AWS D1.1.

Size Range

Diameter

Metric: M10 to M25
Inch : 0.4 " to 1 "

Length

Length upto 10"

washers-spring-lock-washer

Spring Lock Washer

A spring lock washer is a mechanical component designed to prevent the loosening of fasteners due to vibrations or dynamic loads. Its helical shape allows it to exert a continuous force against the fastener, maintaining tension and ensuring a secure connection. Commonly used in automotive, aerospace, and industrial applications, spring lock washers are essential for maintaining the integrity of bolted joints. They are typically made from high-carbon steel or stainless steel to provide durability and resistance to corrosion. Available in various sizes and grades, spring lock washers are compatible with a wide range of bolts and nuts, offering versatility in fastening solutions. Their design and material properties make them a reliable choice for preventing fastener loosening in critical applications.

Size Range

Diameter

Metric: M8 to M30
Inch: 0.3 ” to 1.2 "

Length

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Plain Washer

A plain washer, also known as a flat washer, is a thin, flat, circular metal disc with a central hole. It is primarily used to distribute the load of a threaded fastener, such as a bolt or nut, over a larger surface area, thereby reducing stress and preventing damage to the material being fastened. Plain washers also help in preventing loosening of fasteners due to vibration and can act as spacers. They are commonly made from materials like steel, stainless steel, brass, and nylon, catering to various industrial, automotive, and household applications. Available in multiple sizes and thicknesses, plain washers are essential components in ensuring the longevity and reliability of mechanical assemblies.

Size Range

Diameter

Metric: M8 to M52
Inch: 5/16" to 2"

Length

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fasteners-direct-tension-indicator-washer

Direct Tension Indicator Washer

Direct Tension indicators(DTI Washers), also known as Auto Torque Indicators, are single-use mechanical load cells designed to indicate the magnitude of preload in the assembly, It shows if the bolt is properly tensioned, it is very useful while tensioning High Strength Structural bolts. Direct tension indicator washers (DTIs) are innovative fasteners designed to provide a visual indication of proper bolt tension. These washers feature protrusions that flatten as the bolt is tightened to the specified tension, ensuring accurate and reliable tensioning in structural and high-stress applications. Ideal for use in construction, bridges, and heavy machinery, DTIs enhance safety and performance by guaranteeing correct tension in critical assemblies. Made from high-quality materials, these washers offer excellent durability and resistance to wear and environmental conditions.

Size Range

Diameter

Metric: M12 - M36

Length

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Hardened Steel Washer

A hardened steel washer is a flat, disc-shaped component made from steel that has undergone a heat treatment process to increase its hardness and strength. This enhancement makes it ideal for applications where high tensile strength and resistance to wear are essential. Hardened steel washers are commonly used in heavy-duty machinery, automotive, and construction industries to distribute loads, reduce friction, and prevent damage to surfaces. They are available in various sizes and grades to accommodate different fastening requirements. The hardness of these washers ensures they maintain their shape and functionality under high-pressure conditions. Additionally, hardened steel washers are often coated or plated to provide corrosion resistance, extending their lifespan in harsh environments.

Size Range

Diameter

Metric: M16 to M36
Inch: 0.6 " to 1.4 "

Length

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poleline-hardware-gate-pins

Gate Pins

Gate Pins are essential fastening components used extensively in structural connections, especially in heavy-duty applications where strength and durability are critical. Manufactured using high-quality materials, such as stainless steel, these pins ensure long-lasting performance even in challenging environments. They are precision-engineered to fit securely and provide stability in gate assemblies, hinges, and mechanical connections. At Pankaj International, we supply gate pins that meet international standards, ensuring reliability and top-tier quality. These pins are widely used in construction, agriculture, and industrial equipment, making them a versatile solution. Known for their corrosion resistance and ease of installation, our gate pins are ideal for customers seeking the best fastener manufacturer in India and worldwide.

Size Range

Diameter

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poleline-hardware-square-head-machine-bolt

Square Head Machine Bolt

The Square Head Machine Bolt is a high-performance fastener that combines strength, durability, and versatility, making it a vital component in industrial and structural applications. Designed with a square head for better grip and stability, this bolt is widely used in construction, manufacturing, and machinery assembly. Manufactured with precision by Pankaj International, the best fastener manufacturer in India and worldwide, these bolts ensure reliability and optimal performance. Whether securing heavy loads or creating stable connections, our Square Head Machine Bolts meet the highest standards of quality and efficiency.

Size Range

Diameter

1/2 " to 1"

Length

Inch : 4" to 30"
Metric : 100 mm to 760 mm

poleline-hardware-double-arming-bolt

Double Arming Bolt

The Double Arming Bolt is a premium fastener designed for applications that require strong and secure connections, particularly in power distribution systems and pole-line hardware. Manufactured with precision, this bolt offers enhanced strength and durability, making it ideal for heavy-duty tasks. Whether you need a table of Double Arming Bolt specifications, drawings, or product images, our comprehensive resources ensure you have all the details required for your project. At Pankaj International, we provide high-quality fasteners bolts nuts and specialize in delivering solutions for electrical and industrial requirements. Choose the Double Arming Bolt for reliable and efficient performance.

Size Range

Diameter

1/2" to 1"

Length

4" to 30"

poleline-hardware-3-hole-clamping

3 Hole Clamping

3 Hole Clamping is an essential fastening component used for secure and stable installations across various industries. Known for its innovative design, it features three strategically placed holes that ensure maximum grip and even distribution of load. At Pankaj International, a renowned fastener manufacturer in India and worldwide, we offer top-grade 3 Hole Clamping solutions to meet diverse industrial needs. Crafted from premium materials, these clamps provide exceptional durability, precision, and strength. Whether you require them for heavy machinery, structural support, or other industrial applications, our clamps are designed for efficiency and long-term reliability. Explore the best bolts fasteners and fasteners bolts nuts for your projects with us.

Size Range

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poleline-hardware-insulator-short-stud

Insulator Short Stud

The Insulator Short Stud is an essential component used in electrical insulation and support systems. Designed to provide reliable and efficient connections, this stud ensures stability in high-performance applications such as power distribution, electrical installations, and industrial setups. Manufactured with precision, it features superior threading and robust construction to endure extreme conditions, including high voltage and temperature fluctuations. At Pankaj International, we deliver premium bolts fasteners and fasteners bolts nuts, ensuring unmatched durability and efficiency. The Insulator Short Stud is ideal for enhancing system reliability and performance across multiple industries.

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poleline-hardware-drive-hook

Drive Hook

Drive hooks are essential fasteners used in various industrial and construction applications. Designed for efficient and secure attachment, drive hooks are versatile solutions for heavy-duty projects. At Pankaj International, a leading fastener manufacturer in India and worldwide, we ensure these hooks meet rigorous quality standards. Our fasteners bolts nuts, including drive hooks, are known for durability, precision engineering, and superior load-bearing capabilities. Whether used in construction, furniture assembly, or other industries, our drive hooks are designed to last. If you are looking for bolts fasteners or premium fasteners with proven performance, Pankaj International is your trusted supplier. Explore our range of bolt fasteners to discover the right solutions for your needs.

Size Range

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poleline-hardware-insulator-stud

Insulator Stud

Insulator Studs are essential fastening components used in electrical and industrial applications, designed to provide reliable support and secure connections. These studs are commonly utilized in situations where electrical insulation is necessary, providing protection against electrical current and enhancing the safety of electrical circuits. Manufactured with high-quality materials such as stainless steel or brass, insulator studs offer excellent corrosion resistance and durability. At Pankaj International, we supply a range of insulator studs that are engineered to meet global standards, ensuring a high level of performance and longevity. These studs are critical in various industries, including power transmission, telecommunications, and heavy machinery, providing a secure and safe solution for electrical installations.

Size Range

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