The Master Lock 7050MK Pro Series Solid Body Padlock features a 2-inch wide heavy hardened steel body with chrome rustproofing and a 1-1/2-inch tall, 3/8-inch diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications a dual ...The Master Lock 7050MK Pro Series Solid Body Padlock features a 2-inch wide heavy hardened steel body with chrome rustproofing and a 1-1/2-inch tall, 3/8-inch diameter hardened boron alloy shackle for superior cut resistance. Designed for commercial/industrial applications a dual ball locking mechanism resists pulling and prying and a high security, rekeyable 5-pin cylinder with spool pins is virtually impossible to pick.