The LAPO Heavy Duty Mortise Door Lock RO-276 is a premium-quality main door lock designed for durability, strength, and long-term performance. Made from virgin zinc alloy, it ensures rust resistance, toughness, and reliable daily use with a stylish antique finish.

Featuring a 70mm bolt cylinder and 50x85mm lock body, this lock is engineered for precise fitment and is suitable for doors with a 30mm to 55mm thickness. It includes a complete door lock kit with 2 elegant handles, 1 lock body and cylinder, 1 covering plate, 3 computer-cut brass keys, and fitting screws—providing everything needed for installation.