Nylon Lock Nuts NPT Thread 3/4" - NPT Thread Lock Nuts are used with Non-Metallic Cable Glands.Nylon NPT Lock Nuts 3/4" features include: Nylon 66 Material NPT Thread Hexagonal Head Made of UL approved NYLON 66, 94V-2 (Black) Order Qty of 1 = 1 Piece Below is more info on our Nylon NPT Lock Nuts 3/4"