McMaster 98338A370 Zinc Plated Carbon Steel Cotter Pin, 1 2" Dia × 3" Long, Pack of 5 B120 Maximum Number of Padlocks 4 Maximum Number of Padlocks 4 Lockout Material Nylon Lockout Color Red For Use With Butterfly Valves Valve Lockout Type Butterfly Valve and Cable Lockout Kit For Handle Type Lever Handle Temp Pressure 150 psi @ 150 Degrees F Basic Pipe Fitting Shape Nipple Pipe Fitting Material Galvanized Steel Pipe Fitting Schedule Class Schedule 40 Specific Pipe Fitting Shape Nipple Pipe Fitting Connection Type MNPT x MNPT Basic Pipe Fitting Material Metal Standards ASTM A53 Type F they're not ideal for wet environments Lock the ends of clevis pins and shafts to keep components in place