Preloaded Friction-Grip Bolting for Structures
Bolt Standard: IS 3757
Nut Standard: IS 6623
Washer Standard: IS 6649
EN/ASTM Equivalents: EN 14399-4 (HV system), ASTM A325/A490
Description:
High Strength Friction Grip (HSFG) bolt sets are used where high preloads and vibration resistance are essential. Load is transferred via plate friction, not bolt shear.
Features:
- Grades: 8.8 / 10.9
- Components: Bolt + Hardened Nut + Washer
- Finish: HDG, Phosphated, Dacromet
Applications:
Bridges, Wind Towers, High-Rises, Heavy Steel Structures
