Railways & Mobility
Railways & Mobility

Ever since the industrial revolution, railways have formed the backbone of industrial societies with the development of the two going hand-in-hand. In that time, we’ve progressed from steam-powered locomotives to high-speed trains that travel beyond 300 km/h (175 miles/hour).

Ever since the industrial revolution, railways have formed the backbone of industrial societies with the development of the two going hand-in-hand. In that time, we’ve progressed from steam-powered locomotives to high-speed trains that travel beyond 300 km/h (175 miles/hour).But the principle remains the same: trains need to be reliable and they need to be on time. Bolt loosening anywhere on railway infrastructure and rolling stock can be costly, and even fatal if a train is in motion. With hundreds of thousands of kilometers of tracks covering the earth’s surface, along with numerous types of switches, checking and tightening bolted joints is time consuming and tedious work.It is critical to ensure that your chosen bolt securing product will hold despite the elements. As trains and railway networks become more advanced, so do the demands on rail lines and train components. When a train is travelling at over 300 km/h, the whole carriage is rattled with constant vibration and strain, creating a host of challenges.

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Carriage Bolt

There are specially designed types of bolts for these applications which are termed carriage bolts. Earlier in the 1800s, these bolts were used in the construction of carriages and their wheels. That is where they get their name. These bolts come in various styles and head and neck shapes.

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Size Range
Diameter

M8 to M20 5/16" to 3/4"

Length

20 mm to 200 mm 1" to 8"

Fish Bolt

A fish plate, splice bar or joint bar is a metal connecting plate used to bolt the ends of two rails into a continuous track .

Fish bolt is the fastener used on this plates for jointing.

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Size Range
Diameter

3/4" to 1-3/4"

Length

4" to 12"

Foundation Bolts

 A foundation bolt is a steel product in the form of a rod with a threaded part; consists of a metal rod and a special device that holds the foundation bolt inside the foundation. It is used for fastening structures in the construction of residential buildings, industrial buildings, roads, etc. 

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Size Range
Diameter

1/2" to 2"

Length

6" to 48"

Guard Rail Bolt/Crash Barrier Bolt

These Fasteners are mainly used in installation of road crash barriers /guard rail at the roads sides and turning points of roads to safeguard the fatal accidents and safety of vehicles

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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 designed for steel-to-steel connections and include ASTM A325 and A490 specifications, which covers bolts from 1/2” up to 1-1/2” in diameter. Since these heavy hex bolts are intended for structural connections, they have shorter thread lengths than standard hex bolts.

Heavy Hex Bolts are designed for use in a variety of high temperature, high strength industrial applications, such as with steel fabrication and general construction. They feature a thicker head than standard or regular hex bolts, and offer a greater bearing surface that distributes the clamping load over a wider area.

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Size Range
Diameter

Metric : M12 to M42
Inch: 5/16" to 2"

Length

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

Hex Head Bolt

As the name implies, these bolts feature a hexagonal head or a hex head, that is suitable for tightening with a wrench or socket. A hex bolt may be fully threaded or may feature an unthreaded shoulder. Hex bolts are often used to fasten wood to wood, metal to wood, or metal to metal

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Size Range
Diameter

Inch : 5/16"to 2"
Metric : M8 to M42

Length

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

Hex Head Screw

Hex Cap Screws are fasteners featuring a hexagonal, six-sided, head with a washer face on the bearing surface and a chamfered point. Commonly used in construction and machine assemblies, hex cap screws are one of the most common fasteners used on the jobsite today.

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Size Range
Diameter

Metric: M8 to M42
Inch: 5/16 “to 2"

Length

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

Hexagon Flange Bolt

Hex Flange Bolts are regular hex head bolts with built-in washer and externally threaded body. Flange bolts comes with plain or serrated flange configuration. Hexagon flange bolts, flange bolts, frame bolts are other alias of hex flange bolts.

 

 

 

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Size Range
Diameter

M8 to M20

Length

20 mm to 200 mm

High Tensile Track Shoe bolt

Track Shoe Bolts are designed to. provide excellent strength, toughness and wear resistance in a variety. of track applications for off road machinery. P.I. Track Bolts are. made from Alloy Steel and heat treated to 170,000 psi or 150,000 psi.

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Size Range
Diameter

Metric: M8 to M42
Inch: 5/16" to 2"

Length

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

HSFG Bolt Assembly

High strength bolts or structural bolts are made to be used with heavy hex nuts to connect structural members. To be considered a structural connection, it has to conform to specific ASTM standards; specifically, ASTM A563 or ASTM A194.

Structural bolts are also categorized by grades. The grading system takes into consideration the bolt’s material, its size range, its proof load, the minimum yield strength, and the minimum tensile strength.

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Size Range
Diameter

Metric: M12 - M48

Length

length upto 10

Round Head Rivit

A rivet is a permanent mechanical fastener. Before being installed, a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite to the head is called the tail. On installation, the rivet is placed in a punched or drilled hole, and the tail is upset, or bucked (i.e., deformed), so that it expands to about 1.5 times the original shaft diameter, holding the rivet in place .

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Size Range
Diameter

3/8" to 1-3/8"

Length

10 mm to 500 mm

Socket Head Cap Screw

Socket cap screws are machine screws with a cylindrical barrel shaped head containing a hexagonal socket. The head has a smaller diameter than most other machine screw heads, typically just 1.5 times the nominal thread diameter. Socket cap screws may also be referred to as a socket head cap screw, a cap head socket screw or hex socket head screw.

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Size Range
Diameter

Metric: M8 to M42
Inch: 5/16" to 2"

Length

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

Square Head Bolt

Square Head Bolts are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head.They are commonly referred to as both bolts and screws and are designed to be driven with a wrench. Square Head Bolts are partially threaded with a shoulder beneath the head.

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Welding Shear Connecting Stud

Welding Shear Connecting Stud is a highly reliable fastening method for a wide variety of applications. The process can quickly weld almost any size or configuration of metal stud to a workpiece, with maximum weld penetration and reliability. Arc stud welding creates strong, one-sided welds on base metals as thin as 0.048 inch

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Size Range
Diameter

Metric: M13, M16, M19M22, M25
Inch : 1/2", 5/8", 3/4", 7/8", 1"

Length

Length upto 10"

1" to 1-3/8" Lock Bolts

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Size Range
Diameter

1" and 1-3/8"

Length

6" to 40"

Collars

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Hydraulic Power rig.

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Installation Tools

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Lock Bolts 3/8" to 7/8"

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Size Range
Diameter

3/8" to 7/8"

Length

3" to 12"

Nose Assembly and Parts

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Flange Nut

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Size Range
Diameter

Metric: M8 to M42
Inch: 5/16" to 1-7/8"

Length

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Heavy Hex Nut

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Size Range
Diameter

Metric: M12 to M42
Inch: 1/2" to 1-7/8"

Length

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Hex Nut

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Size Range
Diameter

Metric: M8 to M80
Inch: 5/16" to 3"

Length

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Jam Nut

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Size Range
Diameter

Metric: M12 to M42
Inch: 1/2" to 2"

Length

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Serrated Flange Nut

Serrated flange nuts are hex nuts with non-spinning washers attached at the bottom. Underneath the washers are serrations which allow the nuts to securely fasten when vibrations are present and prevent them from being used with washers or on surfaces that can be scratched

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Size Range
Diameter

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

Length

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12 Point Flange Bolt

The 12-point bolt head design means that this screw can be tightened with a 12-point socket wrench which allows higher torques to be applied as compared to a standard internal hex drive socket head cap screw. This feature, combined with the larger bearing area under the head of the flange design provides further benefits over a traditional hex head cap screw.

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Size Range
Diameter

M8 to M22

Length

30 mm to 175 mm

Button Head Socket Bolt

Button head socket cap screws are also known as round head or dome head socket screws. They are manufactured with a smooth, slightly rounded dome at the head, which tends to be somewhat larger and more bulbous than standard cap screw varieties.

Often, this means that a button head socket screw can accommodate a larger gauge of hex key or driver, and thus can be affixed with more torque to achieve greater clamping forces.

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Size Range
Diameter

M8 to M22

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

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Size Range
Diameter

M10 to M22

Length

50 mm to 175 mm

Nib Bolt

Flat Countersunk Nib Bolts are threaded fasteners with a flat head and are tapered underneath the head. The Nib bolt has a nib which protrudes from the taper that will fit into a countersunk hole with a slot in it which is designed to hold the nib in place as the nut is tightened or loosened on the bolt.Flat Countersunk Nib Bolts are designed to sit flush on a surface.

They are commonly called Plow Bolts as they are often used to affix a blade to the edge of a plow.

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Size Range
Diameter

3/8" to 1-7/8"

Length

2" to 20"

Oval Neck Track Bolt

Track bolts, also called fang bolts or rail anchor bolts, are used to fix steel rails and rail chairs to rail ties, or to fasten rail joints to link rails. The track bolt is a bolt inserted through a hole in rail tie with a fanged nut that embeds into the lower surface of the tie. In general, the size of track bolts varies from requirements of the rail sections.

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Size Range
Diameter

3/4" to 1-3/8"

Length

4" to 20"

Railway Sleeper Screw

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Size Range
Diameter

Metric: M20 to M25
Inch: 3/4" to 1"

Length

Metric: 100 mm to 250 mm
Inch: 4" to 10"

Serrated Flange Bolt

Armed with teeth-like serrations, serrated flange bolts are one-piece bolts bite into surfaces to resist vibration. This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer.

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Size Range
Diameter

M8 to M22

Length

75mm to 150mm

Socket Head Shoulder Screw

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Size Range
Diameter

Metric: M10 to M42

Length

Metric: 15 mm to 200 mm

Plain Washer

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Size Range
Diameter

Metric: M8 to M42
Inch: 5/16" to 2"

Length

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Spring Lock Washer

Unlike flat washers, which are placed on both the bolt and nut side, spring washers only go on the nut side of the fastener to establish a bond. A spring washer offers axial flexibility that's intended to prevent loosening of the fastener with which it's paired.

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Size Range
Diameter

Metric: M8 to M30
Inch: 5/16” to 1¼"

Length

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