Master Lock 3KA 3212 Padlock (6-Pack) Commercial grade padlock features superior protection from drilling and prying 1-9/16" (40mm) wide laminated steel body for superior strength 3/4" (19mm) tall, 9/32" (7mm) diameter hardened steel shackle for superior cut resistance Dual locking levers provide extra pry resistance Non-rekeyable, 4-pin W1 cylinder helps prevent picking keyed to 3212 Key Code