Detailed Product Description

* Full one inch throw zinc die cast deadbolt with hardened steel roller insert to resist sawing.
Cylinders and keys:
* 5 pin tumbler mechanism easily removable for rekeying.
* Solid brass cylinder plug, supplied with 3 nickel plated brass keys.
Handing:
* Fully reversible for right or left hand doors.
Door Thickness:
30mm-45mm.
Function:
*Single Cylinder Deadbolt with inside thumb-turn. Deadbolt projected or retracted by use or key outside or inside thumb-turn.
*Double Cylinder Deadbolt, deadbolt projected or retracted by key on either side.
*Keyless deadbolt operated by thumb-turn inside only. This additional security mechanism can not be seen from outside, therefore when used with a door viewer, is far superior than the normal chain door guard.
Backset:
* Adjustable 2-3/8" or 2-3/4"(60mm or 70mm).