AS4305 Free Passage Stainless Steel. New from Asec, this Digital Lock from the AS4300 Series is supplied complete with lever handles. Please note that this unit is supplied without a latch. It is designed for medium to heavy duty use on internal or external timber doors and features 12 large indented buttons. It is suitable for either right or left handed applications on doors up to 60mm thickness, as well as being available with a free passage feature (AS4305).. Lever handle. 2000+ combinations. Heavy duty combination door lock. Hard wearing PVD coating