Sealing LockNut for Threaded RMC/IMC Steel Trade Size 4 in Overall Length 5/32 in Finish Zinc Plated Compatible Conduit Type IMC RMC Thread Size 4 In.-8 Thread Type NPT Conduit Fitting Type Locknut Standards CSA Certified UL 514B UL Listed For Use With Threaded RMC For Conduit Type IMC RMC Overall Height 5 9/32 in Overall Width 5 9/32 in Weight 0.25 lb Compatible Conduit Trade Size 4 in Connection Orientation Straight Connection Type Threaded Inside Diameter 4.4 in