Surface Bolt is a brass door lock accessory with a polished or electroplated surface. It comes in a full range of sizes, with optional widths of 25mm and 32mm, paired with a 20mm fixed base. Lengths include 3", 3.5", 4", 5", and 6". Its sliding structure design ensures smooth operation and reliable locking, effectively enhancing the safety and stability of doors. It is commonly used for reinforced protection of residential doors, office doors, and cabinet doors.