Now, a padlock that meets MILSPEC (Military Specification) at an affordable price! This padlock offers all the features of some of the most expensive padlocks but at a realistic price. Dual ball bearings prevent shimming attacks and provide more than 3,000 lbf of pull force resistance. The 5-pin cylinder offers more than 32,000 key combinations. Superior rust protection is achieved through the use of zinc chromate plating. The case width is 1¾”, the shackle diameter 5/16” and the opening from the case to the inside top of the shackle is 2¼”. Supplied with two keys per lock.