Check the listing for details. MASTER LOCK 503YLW Group Lockout Box,14 Locks Max,Yellow 2CJL2. Condition: New. Listed at 123.05 USD. Group Lockout Box, Box Color Yellow, Box Material Steel, Door Opening Type Hinged, For Maximum Padlock Shackle Diameter 5/16 in, Maximum Number of Padlocks 14, Number of Key Hooks 12, Overall Depth 3.5 in, Overall Height 12.75 in, Overall Width 6.38 in, Mounting Location Wall, Box Material Finish Powder Coated, Handle Material Stainless Steel, Includes (12) Keys in Back of Box, Standards OSHA 1910.147 This Master Lock(R) Latch Tight(TM) Group Lockout Box captures keys of equipment inside the lock box from lockout points, to help prevent activation during team maintenance or repair jobs. For safety, the Latch Tight(TM) locking mechanism helps prevent keys from being accessed until the last padlock or hasp is removed from the box. It accepts up to 14 padlocks or lockout hasps and can be moun.