Heavy Hex Lock Nuts NU Nylon Inserts Steel Zinc 1-1/8-7 are designed to provide reliable locking in demanding applications. This sturdy NU nylon insert lock nut features a steel body with a durable zinc finish and a heavy hex profile for increased torque and seating stability.

Designed to prevent loosening under vibration, the nylon insert creates resistance and reduces backlash. The nylon insert is seated inside the nut and compresses against the bolt threads when tightened to achieve locking action.

• Material: High-strength steel with zinc plating for corrosion resistance
• Locking mechanism: Nylon insert lock nut (NU/nylon-insert) for vibration resistance
• Size/Thread: 1-1/8 inch diameter with 7 threads per inch (1-1/8-7 UNC)
• Style: Heavy hex nut for better grip and torque transfer
• Applications: Ideal for mechanical assemblies, automotive, industrial equipment, and machinery subject to movement or shock

Whether you’re repairing existing hardware or fabricating new equipment, these lock nuts deliver dependable tightening performance, improved safety, and longer service life. Add NU nylon insert heavy hex lock nuts to your fastener kit today and experience secure, maintenance-free fastening.