Security Lock Cylinder Length: 30mm. 2. High quality stainless steel material and nickel finish, durable for long time use. 3. The lock system comes with two identical keys, each key fits all the locks you will buy from this listing. 4. The lock is easy to install and opens by rotating 90 degrees. 5. Perfect items to secure your cabinet, mailbox, drawer and cupboard. Product Description: This high quality lock is made of durable stainless steel with nickel finish, and it can be installed on metal or wood. It comes with a cam lock, cam nut and screws, so you can install it easily. Perfect items to secure your cabinet, mailbox, drawer and cupboard. Cylinder length: 30mm Mounting hole size: 19 x 16.4mm Package includes: 1* furniture lock 2* keys 1* cam 1* cam nut 1* screw