Carriage bolt is a domed head bolt with square anti-spin shoulder, mainly used for clamping timber or attaching ironmongery to timber
Carriage or coach bolts are also sometimes known as a cup square carriage bolt
Full metric coarse thread
Manufactured from A2 stainless steel for superior corrosion resistance - ideal for exterior use
Stainless steel must be used where there is a corrosive environment or corrosive base material