The American Lock No. A31KA Solid Body Padlock, Keyed Alike – multiple locks open with the same key – features a 1-1/2in (38mm) wide solid aluminum body and a 1-1/2in (38mm) tall, 1/4in (6mm) diameter chrome shackle for extra corrosion resistance. Ideal for corrosive environments, the non-rekeyable 5-pin APTC12 cylinder can be factory keyed to your requirements.