The Commando Lock Blackout 1300 Series locks feature our Solid body Tek construction: an interlocked and riveted body design that is stronger than conventional locks. Perfect for most Pelican Cases, low profile and tactical. Compliant with US Military standards for safety and construction, these locks are ideal for all security uses. With a rust-resistant black zinc coating and dual-hardened stainless steel, Commando locks can handle much more than your average wear and tear. Chamfered rivet holes prevent the lock from fracturing when they are chiseled and our steel-alloy shackle is far more cut-resistant than your average hardened steel. Additionally, the UV-resistant polypropylene bumpers will not scratch or mark your valuables. All Commando locks come with a pick and bump resistant security pin system that can feature up to 10 security pins, and Commando locks are key responsible - meaning the key stays in the lock until fully locked or open 180 degrees.