BZP Excal - Gearbox 25mm Backset (No Claws)

This backset is Police Preferred Specification, and is one of the most effective ways to secure PVC, timber, and aluminium casement windows.

• Intended for use on windows with a centre mullion when central locking is not required.
• Ten year mechanical guarantee.

BZP, or 'Bright Zinc Plated', products are made from steel and plated with a thin layer of zinc using an electric current, to protect against rusting and oxidisation.