Master Lock 2" Commerical Padlock - Keyed Alike. Tough, laminated, cadmium rustproofed steel case; special alloy steel shackle. Shackle diameter 3/8". Dual steel locking levers independently lock each shackle leg for increased protection. Removable key-change number for added security. Shackle clearance: Horizontal 15/16"; vertical 1". Comes with 2 brass keys. Masterlock.