Torshear Type Bolt With Hexagon Head With Large Width Across Flats
Twist-Off-Type Tension Control Structural Bolts: Heavy Hex Head Configurations (ASTM F3125 / F3125M)
Twist-Off-Type Tension Control Structural Bolts: Heavy Hex Head Configurations (ASTM F 1852 / ASTM F 2280)
Steel Structure With High Torsional Shear Strength Hexagon Head Bolts (ASTM F 1852 / ASTM F 2280)