Blind Flange Lockout Device For Maximum Flange Width 5 5/8 in For Maximum Nut Diameter 1 1/8 in For Maximum Padlock Shackle Diameter 9/32 in For Maximum Pipe Size 3 in For Minimum Flange Width 1 1/2 in For Minimum Nut Diameter 3/4 in For Minimum Pipe Size 1/2 in Maximum Number of Padlocks 4 Bar Material Hardened Steel For Location Indoor Outdoor For Use With Pipeline Maintenance Lockout Color Black/Red/Silver Lockout Material Aluminum/Hardened Steel