Codelocks CL400SS Front & Back Plate Stainless Steel is a medium duty item used only with an existing mortice latch or lock. Requires an existing fixing hole 22mm below the follower spindle). The full size lever handle has a stainless steel PVD finish. Suitable for use on internal and external doors as the primary lock. For use in commercial buildings, hospitals, care homes, schools, hotels and leisure centres.