A set of 2 x TSS door security bolts and 2 x thumb turns to suit timber doors. Sometimes referred to as a rack or mortice bolt. Supplied with a pair of thumbturns to suit the mortice bolts. Suitable for use in all domestic, industrial and commercial environments. Supplied with wood screws, strike plate and Escutcheon . Nickel and white versions are 55mm backset and the brass finish is 60mm backset.