OVERVIEWChoice of 22 Key-in-Knob keyways to match this padlock to your security door locks. See Related Information for options.Ideal for harsh outdoor conditions - exclusive Weather Tough cover protects lock from water, ice, dirt and grimeProSeries Padlocks are designed for Commercial/Industrial applications2-1/8in (54mm) heavy steel body withstands physical attack1-1/8in (29mm) tall, 5/16in (8mm) diameter hardened boron alloy shackle for superior cut resistanceDual ball locking mechanism resists pulling and pryingLock available with or without cylinder to key at your facility. Accepts Lori #1539 style cylinder.Rekeyable 5- and 6-pin cylinder options.