The Master Lock No. 4150KA Economy Padlock, Keyed Alike – multiple locks open with the same key – features a 1-7/8in (48mm) wide brass body to resist the elements and a 15/16in (24mm) tall, 9/32in (7mm) diameter hardened steel shackle for excellent cut resistance. Ideal for cabinets & fences, the non-rekeyable 5-pin tumbler cylinder provides greater pick resistance.