BATIS Heavy Duty Padlocks 94mm you can be assured of the high security and durability our locks will provide. Feel the solid composition of weight in your hand. Turn the key and note that the motion is smooth with no spring loaded parts to bind or wear out over time. The BATIS Security Keyed Alike D-shaped security padlock has a freely rotating, 3/8 inch hardened steel shackle that can be applied vertically or horizontally on storage or shipping containers. The shackle has no springs to bind up or corrode over time. The SPSA high security padlock grants very little access for bolt cutters or saws and features a hardened steel, chrome plated bolt that rotates freely indeed making this lock live up to its name as a "Jimmy Proof" style high security padlock!This high security padlock requires the keyway to turn 90 degrees prior to connecting with the disks making it both a heavy duty padlock and a very high security lock. With all the internal mechanics being made out of brass and stainless steel, these security padlocks are built to last. Having this heavy duty padlock gives you the peace of mind for complete security for your belongings.