EG STARTS Locks 5/8" tubular cam locks (sometimes called ace cam locks) are locked in the same way with five keys per pack of 5 locks. Each key will fit every lock you buy. FITS MOST SPACES - The cylinder length of the locks is 5/8" long. They can fit a material thickness of up to 3/8". These are standard size cam locks with a diameter of 3/4". (see diagram for a more detailed image). VERSATILE INSTALLATION - The versatility of the locks allows it to be installed in multiple positions. The cam can be installed on the lock at the 3, 6, 9 or 12 o'clock position and opens with a 90-degree turn. Key retainer – Comes with reversible stop cam and is the key retainer. The key can only be removed by returning to the original. INCLUDES - Comes with (5) locks, 5 keys. They are constructed of zinc alloy and are chrome plated. Easy to install in metal, wooden door, cabinet, speaker, etc., Weight: 0.75 Pounds, Manufacturer: EG STARTS