Home hardware Mortise Lock 55mm Backset Door Security
Backset: 55mm
Forend: Square corner standard; (Round cornder optional)SUS304 Stainless Steel
Strike: Curved type anti-friction; SUS201 Stainless Steel standard (304SS optional)
Latch: Reversible for RH/LH, SUS304 material standard (Zamak material optional)

European mortise lock set sliding wooden door lock
EN12209:2016 /DIN 18.251 class 3  
Exceeds 300,000 cycles