Designed for use in conjunction with 4500 or 4700 Series deadlatches, these strikes offer a choice of mounting methods: a back-up mounting plate included with the 4501 and 4502 allows installation flush in a hollow section jamb. For wood jambs, the mounting plate can be discarded and the strike plate and dust box mortised in. 22-0063 and 22-0064 are strike plates without dust box or back-up mounting plate, for mounting on jamb surface or on tube spacers to the back web of a hollow jamb. All strikes are unhanded, suitable for right or left hand doors. Strike plate material is stainless steel, satin buffed.