Yale Security Lock, Grey, Pack of 2

ManoMano

General description The Yale PM444 series security door bolts are concealed (mortice fixed) into the door, featuring a bolt that extends into the door frame to provide enhanced security. Operated with a key, these bolts offer added protection for your home. The package includes additional keys, which are useful in case the original key is lost or misplaced. Technical specifications Type: Security door bolt with mortice fixing Operation: Key-operated Includes: Additional keys (pack of 2) Compatibility and accessories Compatible with Yale PM444 series security door bolts Includes 2 extra keys for convenience and security Installation Concealed (mortice) installation into the door Requires basic tools for fitting into the door and frame Usage Operate with the supplied key to lock or unlock the bolt Use the additional keys as spares or for multiple users Other information Ideal for securing external doors with enhanced protection

Amazon

Key for concealed door bolts Suitable for wooden doors Lock can only be operated from inside Additional security, ideal for back doors Recommended that two bolts are used per door, Weight: 0.07 pounds, Manufacturer: Yale