The Master Lock No. 230 Solid Body Padlock features a 2-1/2in (64mm) wide zinc die-cast body, chrome plated to resist corrosion, and a 1in (25mm), 7/16in (11mm) diameter hardened boron alloy shackle for superior cut resistance. Ideal for industrial applications, a rekeyable 5-pin W27 cylinder provides excellent pick resistance.