Standard: EN 14399-3
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.


Technical Specifications
| Standard | EN 14399-3 |
|---|---|
| Grades / Property Class | 8.8HR, 10.9HR |
| Size Range | M12 to M36 |
Key Features
High Tensile Strength
Controlled Mechanical Properties
Excellent Coating Performance
Suitable for Railway & Infrastructure Applications
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