5/16"-18 Nylon Insert Locknut Heavy (NTU) / Grade A Steel/Zinc Plated (Quantity: 100) Heavy Hex, Thin Height

Heavy Hex Nut with a nylon-filled collar at its back end. When the cap screw or bolt reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the cap-screw or bolt when it is subjected to vibration. Thin pattern heavy hex nuts are used when an insufficient number of projecting threads are present to use a full heavy hex nylon insert stop nut

• Heavy Hex, Thin Height (NTU Series)
• For use in limited clearance applications and not for load bearing
• Identical to the NU Series heavy hex nylon insert stop nut but approximately 35 percent less thick from top to bottom
• NTU Series (Heavy Hex, Thin Height)
• Also known as: Nylon Insert Stop Nuts, Nylock Nuts, Elastic Lock Nuts, Elastic Stop Nuts