Perko's 0567DP0CHR Tubular Latch Set includes a sliding lock button. The Tubular Latch Set is constructed with chrome plated zinc alloy materials. It is compatible with doors that have a thickness between 1" - 1-3/8". The required screw size for installation is #6. The Escutcheon dimensions are 4-3/8" x 1-1/4" and the tubes outer diameter is 3/4".