Sashlocks: 5 Lever BS04

Our selection of 5-lever BS3621:2004 mortice sashlocks offers high-security protection designed specifically for external timber doors. Rigorously tested to meet British Standard BS 3621:2004, these locks are widely required by UK home insurance providers to satisfy security policies. Combining a secure deadbolt with a latchbolt for handle operation, they feature robust defensive mechanisms including anti-pick, anti-drill, and anti-saw protection. Available in a variety of standard backsets and premium finishes such as polished brass, satin chrome, and stainless steel, these sashlocks provide reliable physical security while seamlessly matching your existing door hardware.