The 5/16in (8mm) diameter octagonal shackle is 1-1/2in (38mm) long and made of Tough-Cut™ boron-carbide, 50% harder than hardened steel, offering maximum resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking ball bearings provide maximum resistance against prying and hammering.
Specification: Master Lock 1-3/4 in. W X 1.5 in. L Stainless Steel Ball Bearing Locking Padlock 1 pk
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