ZING Aluminum Padlocks are designed to support OSHA Lockout requirements and prevent energization of equipment that could harm employees during servicing. Padlock body is made of lightweight premium aluminum that is non-sparking and non-magnetic and shackle is made from hardened alloy steel with protective plating for extreme corrosion resistance. Padlock uses high content recycled material that is UL Validated for recycled content which substantiates material compliance with various green codes, standards, and procurement policies including the LEED Green Building Rating System, IgCC, GSA Advantage, ASHRAE 189.1 and others. Padlocks are keyed different and include two keys per lock. Padlocks feature precision 6-pin cylinder for maximum key difference. Lock body measures 1-9/16ëÓ H x 1-1/2ëÓW x 3/4ëÓD, Shackle length is 3″.