Locking Cylinder Cap For Maximum Padlock Shackle Diameter 1/4 in For Neck Ring Diameter 3 1/8 in For Pressure Type High For Thread Type 11 UNF Lockout Material Steel Maximum Number of Padlocks 1 Includes (1) Brass Padlock (1) Lockout Device (3) Keys Lockout Color Yellow Overall Height 9.97 in Overall Width 3.86 in Standards OSHA 1910.147