LockNut for Threaded RMC/IMC Steel Trade Size 1/2 in Overall Length 1 1/8 in Finish Zinc Plated Insulated No Compatible Conduit Type IMC RMC Conduit Fitting Type Locknut Standards CSA Certified C22.2 #18 UL Listed E195969 For Use With Fittings Threaded RMC For Conduit Type RMC IMC Color Gray Compatible Conduit Trade Size 1/2 in Includes Clamp