Prevents the door or window being jemmied open from the outside
Features
- Security enhancement
- Prevents the door or window being jemmied open from the outside
- Consists of solid frame part and sash block, locked through a security steel pin
- The window or door can be opened from inside when the device is disengaged by removing the security pin
- Concealed screws on the frame and sash over-rebate
- Security version available with a grub screw
