EN 14399-4 HV Hexagon Head Structural Bolt – HV system hexagon bolt and nut assembly per EN 14399-4 . Property class 10.9/10 . Thread sizes M12–M36 . Preload ≥0.7 fub × As per Eurocode 3 . Ductility via plastic deformation of engaged threads within ...

Hex Head TC Bolt (Torsional Shear Bolt) – A high-strength structural fastener also known as a Tension Control (TC) bolt or twist-off bolt , featuring a hex head design for enhanced load distribution and compatibility with traditional structural stee...