Screw in Cylinders
Screw in cylinder locks are typically found on aluminium shop doors. Screw in cylinders operate a metal mortice lock and tend to be found on commercial doors. Available in Brass and Satin all screw in cylinders have the same thread and are therefore interchangeable between manufacturers. Available from Adams Rite, Asec Locks, CISA Locks, Union Locks, Viro Locks and Yale Locks.