The Deadlocking Nightlatch in Gun Metal Narrow is a stylish and functional lock designed for external doors. The Gun Metal finish adds a modern and sleek touch, making it suitable for contemporary interior and exterior designs. With its narrow size, it is specifically designed to fit narrower doors, offering a practical and convenient solution for residential or commercial use. It features a double-turn, deadlocking function and includes two keys and fixings. The lock has a narrow 40mm backset and a standard 60mm backset. It has a zinc diecast body with solid brass 5-pin cylinder and a standard section keyway, supplied with 3 keys. This nightlatch has a pin tumbler mechanism and is suitable for timber doors. Technical Specifications: Size: 88x66mm. Dimensions: Narrow 67 x 60mm, backset 40mm. Diameter(mm): 32. Fitted Depth: 42-76mm. Finish: Gun Metal.