Thumb turn can be unlocked and taken with you, to convert to double cylinder lock. Caution: double cylinder function should only be used when the building is unoccupied. Always check local building codes.
Best for doors with windows, or where there is a window next to the door
Bump, Drill and Pick resistant
Restricted keys: no unauthorized duplication
Anti-drill pins above the shear-line of the cylinders
Hardened steel bolt mechanism
Ball bearings in bolt lock the bolt into the strike box to protect against prying attack
Works on 2 3/8 and 2 3/4 backset: adjustable bolt
Spacers required for doors less than 1 3/8 thick
Conforms to ANSI Grade 1 and ul fire rated bolt
CLICK BELOW TO PURCHASE: