Defender Aluminium Padlock Quad Pack 40mm NEWLY IMPORTED preventing the main bolt being preventing the main bolt being retracted by a credit card The inside handle can be deadlocked by an anti clockwise turn of the key from the inside so securing the lock against forced entry The bolt can be held in the withdrawn position (only) with the use of the snib feature This product is ideal for solid and glass panelled doors Features a 20mm bolt throw Interior & Exterior Material: Zinc Alloy Fixings included 10 year guarantee and warranty Opal PMMA Diffuser Removable Silver Trim Quick & Easy Installation LED IP44 Fitting Push In Terminals Suitable for Zones 1