The Master Lock No. 220KA Solid Body Padlock, Keyed Alike – multiple locks open with the same key – features a 2in (51mm) wide zinc die-cast body, chrome plated to resist corrosion, and a 1in (25mm) tall, 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Ideal for industrial applications, a rekeyable 5-in W27 cylinder provides excellent pick resistance.