Mul-T-Lock High Security heavy duty single cylinder deadbolt system for commercial and residential doors.
90˚ key rotation throws the bolt 1″ towards the frame, interlocking two hardened ball bearings with the strike to increase jimmying resistance. Thumbturn on the inside of the doors also throws the bolt.
Ring and cylinder: solid brass
Bolt anti drilling ring: hardened steel
Pins: nickel silver and stainless steel
Suitable for two backsets, no need for different parts
Supplied as standard with 1″ (25 mm) throw
Thumbturn tail adjustable to door width
Thumbturn can be set horizontally or vertically in locked position
Mul-T-Lock’s unique, high-precision pin tumbler system.
UL437; UL; Conforms to ANSI GRADE 1