Construction & Roadways
Construction & Roadways

Pankaj International, the best fastener manufacturer in the world, provides a comprehensive range of high-quality fasteners and hardware for road construction, including guardrails and crash barriers.

Pankaj International, recognized as the best fastener manufacturer in the world, delivers essential fasteners and hardware for the construction and maintenance of roadways. Our extensive product range includes high-quality fasteners for guardrails and crash barriers, crucial for enhancing road safety and minimizing accident severity. Designed to withstand constant vibrations and harsh conditions, our fastening solutions ensure the reliability and durability of safety features on roads and highways. With Pankaj International, you can trust that your road construction projects are supported by top-tier products that meet the highest standards of performance and safety.

We manufacture the complete range of hardware and fasteners for all types of guard rails and crash barriers.

Recommended products for the industry

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. Explore high-quality carriage bolts from Pankaj International, a leading fasteners manufacturer in Ludhiana, India. Our carriage bolts, with unique head and neck shapes, are perfect for secure fastening in various applications. Discover our range of high tensile bolts, nuts, screws, and washers.

Size Range
Diameter

M5 to M16
0.2 " to 0.6 "

Length

20 mm to 200 mm 1" to 8"

Fish Bolt

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. Fish bolts are essential fasteners used with fish plates, splice bars, or joint bars to connect the ends of two rails into a continuous track. Designed for durability and precision, fish bolts ensure secure jointing in rail systems, making them crucial for maintaining track integrity. As a leading fasteners manufacturer in Ludhiana, India, Pankaj International offers high-quality fish bolts, tailored for robust rail connections. Explore our extensive range of high tensile bolts, nuts, screws, and washers for all your industrial needs.


Size Range
Diameter

M10 to M22

Length

4" to 12"

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. Guard rail bolts, also known as crash barrier bolts, are essential fasteners used in the installation of road crash barriers and guard rails at roadside locations and turning points. Designed to enhance safety and prevent accidents, these robust bolts ensure secure and reliable barrier installation.  As a leading fasteners manufacturer in Ludhiana, India, Pankaj International offers high-quality guard rail bolts, engineered for durability and performance in critical safety applications. Explore our comprehensive range of high tensile bolts, nuts, screws, and washers.


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 boltsHeavy 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.


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

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

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

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.

Size Range
Diameter

Metric: M8 to M52
Inch: 0.3 “ to 2 "

Length

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

HSFG Bolt Assembly

HSFG (High Strength Friction Grip) bolt assemblies are engineered for high-stress structural connections. These bolts, combined with heavy hex nuts, conform to ASTM A563 or A194 standards to ensure superior strength and reliability. Ideal for steel-to-steel connections, HSFG bolts provide robust and secure fastening, distributing load evenly and resisting loosening under vibration. Perfect for use in construction, bridges, and heavy infrastructure projects, they guarantee long-lasting performance and safety.

Size Range
Diameter

Metric: M12 - M36

Length

length upto 10

Shank Studs

ASTM A193 Grade B7 Studs /Shank studs coupled with a pair of nuts are most commonly used fasteners for bolting carbon steel pipelines.P.I is a manufacturer and supplier of A193 Grade B7 Stud Bolts with full threads, double end threads and tap end thread configuration. We offer B7 stud bolts in both metric and imperial sizes with coarse, fine & extra fine threads. These stud bolts are produced with full compliance to all requirements of ASTM A193 Grade B7 specification and supplied with authentic 3.1 certificate.

Size Range
Diameter

1/4 " to 2 "

Length

25 mm to 500 mm

Heavy Hex Nut

Heavy hex nuts are robust fasteners designed with a thicker and wider profile than standard hex nuts, providing superior strength and load-bearing capacity. These nuts are ideal for heavy-duty applications, including structural connections, bridge construction, and heavy machinery. Manufactured from high-quality materials, heavy hex nuts offer exceptional durability, resistance to corrosion, and reliable performance under high-stress conditions.

Size Range
Diameter

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

Length

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Hex Nut

Hex nuts are essential fasteners featuring a six-sided design for easy tightening with a standard wrench or socket. These versatile nuts are widely used in a variety of applications, including automotive, construction, and machinery assemblies, providing secure and reliable connections. Manufactured from high-quality materials, hex nuts offer excellent durability, resistance to corrosion, and long-lasting performance, making them a staple in any fastener toolkit.

Size Range
Diameter

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

Length

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Button Head Socket screw

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. Button head socket bolts, also known as round head or dome head socket screws, feature a smooth, slightly rounded dome at the head, making them larger and more bulbous compared to standard cap screws. This design allows for the accommodation of a larger gauge hex key or driver, enabling the application of greater torque and achieving superior clamping forces. Ideal for applications requiring enhanced strength and a sleek appearance, Pankaj International offers high-quality button head socket bolts engineered for durability and performance. As a leading fasteners manufacturer in Ludhiana, India, we provide reliable solutions for various industrial needs.

Size Range
Diameter

M3 to M16

Length

50mm to 175mm

Hardened Steel Washer

Hardened washers are made physically stronger through hardening or carburizing, but are generally smaller in size than your standard washer. Hardened flat washers are designed with extra strength and can be used with Grade 8 bolts and other heat-treated fasteners. Hardened steel washers are high-strength fasteners designed to provide superior load distribution and prevent wear in demanding applications. These washers are heat-treated to achieve maximum hardness and durability, making them ideal for use in heavy machinery, construction, and automotive assemblies. By offering increased resistance to deformation and corrosion, hardened steel washers ensure reliable and long-lasting performance in high-stress environments.

Size Range
Diameter

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

Length

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Plain Washer

Plain washers, also known as flat washers, are essential components used to distribute the load of a fastener, reducing surface wear and ensuring a secure assembly. These washers provide a smooth bearing surface, enhancing the stability of bolts, nuts, and other fasteners in various applications, including construction, automotive, and machinery. Manufactured from high-quality materials, plain washers offer excellent durability and resistance to corrosion, ensuring long-lasting performance and reliability.

Size Range
Diameter

Metric: M8 to M52
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. Spring lock washers are essential fasteners used to prevent nuts and bolts from loosening due to vibration and torque. These washers are designed with a helical shape that applies continuous pressure on the fastener, maintaining a tight assembly. Ideal for various industrial, automotive, and machinery applications, spring lock washers ensure reliable and secure connections, enhancing the longevity and safety of assembled components. Made from high-quality materials, they offer excellent durability and resistance to corrosion and wear.

Size Range
Diameter

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

Length

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