Railways & Mobility

Railways & Mobility

Since the industrial revolution, railways have played a pivotal role in industrial growth, advancing from steam locomotives to cutting-edge high-speed trains that now exceed 300 km/h (175 mph). In the railway industry, durability and safety are paramount, and fasteners like lock bolts and are essential components that ensure the structural integrity and reliability of trains. At Pankaj International, we specialize in manufacturing high-performance fasteners specifically designed for the demandin

Pankaj International is a leading supplier of fasteners to the railway industry, specializing in high-quality lock bolts, collars, and other essential fastener products. Our advanced fastening solutions are engineered to meet the rigorous demands of modern railway systems, including the intense vibrations, loads, and extreme conditions faced by high-speed trains. As a trusted provider, we ensure the reliability, safety, and durability of railway infrastructure, helping our clients maintain secure and efficient operations. Whether for freight or passenger rail systems, our products are designed to deliver exceptional performance. With a focus on precision and innovation, Pankaj International continues to meet the evolving needs of the railway sector through our top-tier railway fasteners and related components.

More Industries

Recommended products for the industry

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.

View Details arrowfornodetails
Size Range
Diameter

M5 to M16
0.2 " to 0.6 "

Length

20 mm to 200 mm 1" to 8"

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.

View Details arrowfornodetails
Size Range
Diameter

M10 to M22

Length

4" to 12"

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.

View Details arrowfornodetails
Size Range
Diameter

M10 to M48

Length

6" to 48"

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

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

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.

View Details arrowfornodetails
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"

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.

View Details arrowfornodetails
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"

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.

View Details arrowfornodetails
Size Range
Diameter

Metric: M8 to M52
Inch: 0.3 “ to 2 "

Length

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

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.


 

 

View Details arrowfornodetails
Size Range
Diameter

M5 to M20

Length

20 mm to 200 mm

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.


View Details arrowfornodetails
Size Range
Diameter

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

Length

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

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.

View Details arrowfornodetails
Size Range
Diameter

Metric: M12 - M36

Length

length upto 10

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.

View Details arrowfornodetails
Size Range
Diameter

1/4 " to 3/4 "

Length

10 mm to 500 mm

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

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

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

20 mm to 300 mm

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

Length upto 10"

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.


View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.

View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

1/4 " to 1-3/8 "

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.




View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.



View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.


View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

--

Length

--

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.

View Details arrowfornodetails
Size Range
Diameter

1/4 " to 1-1/2"

Length

30 mm to 175 mm

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.

View Details arrowfornodetails
Size Range
Diameter

M3 to M16

Length

50mm to 175mm

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.

View Details arrowfornodetails
Size Range
Diameter

M3 to M20

Length

50 mm to 175 mm

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.


View Details arrowfornodetails
Size Range
Diameter

M6 to 24

Length

2" to 20"

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.

View Details arrowfornodetails
Size Range
Diameter

M10 to M22

Length

10" to 22"

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.

View Details arrowfornodetails
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"

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.

View Details arrowfornodetails
Size Range
Diameter

M8 to M20

Length

75mm to 150mm

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.




View Details arrowfornodetails
Size Range
Diameter

Metric: M5 to M20

Length

Metric: 15 mm to 100 mm

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

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.

View Details arrowfornodetails
Size Range
Diameter

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

Length

----

pankajinternational