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LOADSTAR.

Manufacturer of HSFG Fasteners, DTI Washers & Railway Infrastructure Fastening Systems

Loyal Enterprise is a leading manufacturer and supplier of High Strength Friction Grip (HSFG) Fasteners, Direct Tension Indicators (DTI), Washers, Nuts, and Special Fastening Systems for Railway, Infrastructure, Bridge, Industrial and Construction Projects.

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12+

Years of Experience

150+

Projects Served

100 Ton/Mn

Manufacturing Capacity

Engineering Strength
Into Every Connection

Under our registered brand "LOADSTAR", we manufacture products in accordance with international standards including EN 14399, ISO 898, ISO 10683, ASTM and Railway specifications.

Advanced Manufacturing Facility

Strict Quality Assurance System

Modern Testing Laboratory

Railway Infrastructure Experience

Skilled Technical Team

Timely Delivery Commitment

Customer Focused Approach

Featured Products

High-performance fastening solutions engineered for critical infrastructure.

HSFG Bolts

LOADSTAR High Strength Friction Grip (HSFG) Bolts are precision-engineered structural fasteners designed for critical bolted connections in steel structures, bridges, and railway infrastructure. Unlike conventional bolts that rely on shear and bearing, HSFG bolts work by applying a controlled pre-tension that generates powerful clamping forces between the connected plates. This friction-based load transfer mechanism prevents joint slip, even under dynamic or cyclic loads, making them the preferred choice for safety-critical applications.

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Heavy Hex Nuts

LOADSTAR Heavy Hex Nuts are high-strength structural nuts manufactured specifically to pair with HSFG bolt assemblies. With a larger bearing surface and greater width across flats compared to standard hex nuts, heavy hex nuts distribute clamping loads more uniformly across the joint — reducing the risk of surface damage and improving connection reliability in demanding structural applications.

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HN Plain Washers

LOADSTAR HN Plain Washers (Nut Face Washers) are hardened flat washers designed for placement under the nut in HSFG bolted assemblies. They protect the connected steel surface from damage during tightening and provide a consistent, hard bearing surface that ensures accurate torque-to-tension transfer throughout the tightening process.

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HR Chamfered Washers

LOADSTAR HR Chamfered Washers (Bolt Face Washers) are precision-machined hardened washers installed under the bolt head in EN 14399 System HR assemblies. The chamfer on the inner bore accommodates the bolt's fillet radius, ensuring full and flush contact between the washer and the bolt head — a critical requirement for achieving the correct load distribution and consistent preload in high-strength structural connections.

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Direct Tension Indicators (DTI)

LOADSTAR Direct Tension Indicators (DTIs) are specialised hardened washers that provide a simple, reliable, and tamper-evident method of verifying that the correct bolt preload has been achieved in an HSFG assembly. Unlike torque-based methods — which measure rotational resistance rather than actual bolt tension — DTI washers directly confirm the clamping force in the joint, eliminating uncertainty from friction variation and tool calibration errors.

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Shear Connector Studs

LOADSTAR Shear Connector Studs are headed weld studs engineered to create composite action between steel beams and concrete slabs. When arc-stud welded to the top flange of a steel girder, shear connector studs interlock the steel and concrete elements so that they behave as a single composite unit — significantly increasing the load-bearing capacity, stiffness, and overall efficiency of the structural system.

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Industries We Serve

Providing reliable connections for critical sectors worldwide.

Railway Infrastructure

Steel Structures

Bridges

Power Plants

Industrial Buildings

Heavy Engineering Applications

Construction Projects

Ready to Discuss Your Project?

Contact our engineering team for technical support, product inquiries, and custom requirements.

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LOADSTAR.

Manufacturer of HSFG Fasteners, DTI Washers & Railway Infrastructure Fastening Systems

Engineering Strength Into Every Connection

Featured Products

HSFG Bolts

Heavy Hex Nuts

HN Plain Washers

HR Chamfered Washers

Direct Tension Indicators (DTI)

Shear Connector Studs

Industries We Serve

Railway Infrastructure

Steel Structures

Bridges

Power Plants

Industrial Buildings

Heavy Engineering Applications

Construction Projects

Ready to Discuss Your Project?

Engineering Strength
Into Every Connection