LockNut for Threaded RMC/IMC 316 Stainless Steel Trade Size 1 1/2 in Overall Length 2 15/32 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 0.08 lb Compatible Conduit Trade Size 1 1/2 in Inside Diameter 1.81 in