Lockey 2950 Keyless Mechanical Mortised Hook Bolt Door Lock. For narrow stile doors is a mechanical keyless door lock that does not require wires, batteries or electricity.
Five-ply laminated steel bolt with concealed hardened steel pin for maximum security.

FEATURES:

• 1-1/8" backset
• 7/8" throw
• Five-ply laminated steel hook bolt with concealed hardened steel pin for maximum security
• Fits doors 1-3/8" to 2" thick
• Outside knob is 1" diameter
• For right or left handed doors/changeable handling
• Combination is easily changed
• Lock only dimensions 5-5/8" H X 1-5/8" W X 1-7/16" D
• Total lock dimensions with trim plates 6" H X 2" W X 1-1/2" D
• Combination can be 2-7 digits in length with tumblers provided
• Double combination (DC) available