Newstar Fire Brigade Mortice Deadlock 118 x 22.5 x 105.5mm (H x W x D) in a satin stainless steel finish offers a medium level of security for external timber doors. The deadlocks ensures the good quality, medium security and is suitable for all types of uPVC, wood and composite doors. Helps in two way locking mechanism. Satin stainless steel prevents tarnishing. Offers a medium level of security for external timber doors.