This Perko surface mount lock is a super sturdy choice for marine use, toolboxes, cabinets, or storage compartments. It's made from black fiber-reinforced polymer with a stainless steel stem and a chrome-plated zinc alloy lock mechanism. It comes with two keys. The 'T' handle is easy to grip. Installation is simple: drill a 2.5-inch diameter hole in your surface (which can be between 1/8\ and 3/4\ thick), mount it, and adjust the cam bar from 1-1/4\ to 1-7/8\ to fit your latch strike. It's built to withstand the harsh marine environment – resistant to corrosion and UV rays. A trusted, heavy-duty Perko part for securing hatches, doors, and lids on boats, RVs, or industrial equipment.