Pro Series High Security Padlocks-Solid Iron Shroud, 5/16" Dia, 3/4" L X 7/8" W

Features: Boron alloy shackle for superior cut resistance | High security solid iron shroud provides protection to the shackle - Greatest security against bolt cutters | Rekeyable for ease of replacing cylinder or shackle | Dual deadbolt locking for resistance to prying