The VIER DOOR HARDWARE Din Nightlatch features a robust 90mm case with 60mm backset, engineered to BS EN 12209:2003 Grade 3 standards for superior durability and security. This professional-grade lock mechanism combines a Grade 304 stainless steel two-piece square forend (22mm profile) with stainless steel latchbolt and deadbolt, offering exceptional corrosion resistance and longevity. The double throw deadbolt provides enhanced security, while the anti-rattle strike ensures quiet operation. Additional features include a grip tight follower for reliable handle operation and 72mm centre-to-centre measurement. Finished in an attractive PVD satin brass effect that combines the warm aesthetic of brass with the durability of PVD coating, this nightlatch is ideal for both residential and commercial applications requiring reliable, long-lasting door security.