BZP Carriage Bolt and Hex Nut are ideal for joining timber to timber and also for securing ironmongery to timber. The carriage bolt has a domed head with a square anti spin shoulder to stop the rotation of the bolt when tightening. The bolt is fully threaded up to and including 150mm and partially threaded thereafter. It includes a hex nut and the bright zinc plated finish has been applied for added protection and corrosion resistance.