Era Double Locking Nightlatch 40mm Finish: Polished Chrome Body Chrome Cylinder Option:Finish: Polished Chrome Body Chrome Cylinder Everlasto braided nylon blind cord 100m Everlasto braided nylon blind cord 100m spools in 1 providing added security to new exterior and interior doors Suitable for fitting on either the inside or outside sliding track Simply press the spring bolt to lock Key only required to unlock Fixings are concealed when in the locked position Hardened steel pin the bolt resists hacksawing Interior & Exterior Material: Zinc Alloy Fixings included 1 year guarantee and warranty The Double Locking Nightlatch is designed to replace most existing front door locks The main lock bolt is 'automatically' deadlocked when the door is closed 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an anti clockwise turn of the key from the inside so securing the lock against forced entry The bolt can be held in the withdrawn position (only) with the use of the snib feature This product is ideal for solid and glass panelled doors An ergonomic internal locking handle which offers added security against forced entry Interior & Exterior Material: Zinc Alloy Fixings included 10 year guarantee and warranty