Lock. Cylinder lock security bolt for mailbox with identical keys (20 mm). Carefully manufactured, the tubular cam lock is made of high-quality zinc alloy. Reinforced and thick lock head. Surface treated with E-coating. Durable in use. Helps protect privacy, valuables and important materials. Offers you a safe personal space with a stylish and complete look. Product size: Our tubular cam lock has a cylindrical length of 20 mm. Cam locks are installed in various thicknesses. Please check the size for your application before purchasing. Identical keys: Tubular cam locks are keyed alike. All keys work the same way with the locks. The key can only be removed when the lock is in the locked position. Make sure not to forget to lock. Wide application: Widely used on many types of cabinets, such as furniture, electronic enclosures, HVAC units, industrial enclosures and equipment, medical cabinets and equipment. Compatible with locks for recreational vehicles, motorhomes and POS systems for advertising. as a replacement for all existing cam locks.