HDG AS1393 4.6 Coach:M8 x 75

The HDG AS1393 4.6 Coach:M8 x 75 is a coach bolt (cup square bolt) with a smooth domed head and square shoulder that pulls into timber to stop it spinning as the nut is tightened. It’s manufactured from hot-dip galvanised steel, giving it a thick protective zinc coating for long-term corrosion resistance in outdoor, structural, and heavy-duty applications. Manufactured to AS1393 grade 4.6 and hot-dip galvanised, it’s a standard choice for structural timber-to-timber and timber-to-steel connections.