WD 40 Value Pack 5L Option:5L Thermostatic control Thermostatic control 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an anti clockwise turn of the key from the inside so securing the lock against forced entry The bolt can be held in the withdrawn position (only) with the use of the snib feature This product is ideal for solid and glass paneled doors An ergonomic internal locking handle which offers added security against forced entry marks and grease making it easy to wipe away It also dissolves adhesives it quickly dries out electrical systems to eliminate moisture induced short circuits Turn the power off before you spray