LockNut for Threaded RMC/IMC 316 Stainless Steel Trade Size 1 in Overall Length 1 13/16 in Finish Polished Compatible Conduit Type RMC IMC Conduit Fitting Type Locknut Standards File #E308159 UL514B For Use With Threaded Metallic Conduit For Conduit Type RMC IMC Weight 0.06 lb Compatible Conduit Trade Size 1 in Inside Diameter 1.21 in