AS4303 Stainless Steel. New from Asec, this Digital Lock from the AS4300 Series features the quick and easy code change function, allowing users to change the code without removing the unit from the door. It is suitable for medium to heavy duty use on internal or external timber doors and is supplied complete with a 60mm latch. It is suitable for either right or left handed applications, with a free turning lever handle that protects against force and has a free passage mode.. Supplied with 60mm latch. Quick and easy code change. Heavy duty combination door lock. 1000+ combinations