Speedway Motors SAE Fine Thread Full Locknut Assortment Kit, All-Metal Self-Locking Hex Nuts for Automotive, Racing, and Mechanical Hardware Fasteners, Multi-Size SAE Lock Nut Set

This Full Nut Nylock kit contains 92 pieces.  These nylocks include a self locking nylon insert in the thread. Full height national fine threads for high torque use. They are designed to increase locking force and prevent the nut from coming loose. Zinc plated. Also known a nyloc nuts, there are several different sizes available in this kit. (25) 1/4", (20) 5/16", (20) 3/8", (15) 7/16", (12) 1/2".

• SAE LOCKNUT ASSORTMENT KIT – Multi-size assortment of SAE fine thread full locknuts designed for secure fastening across automotive, racing, and mechanical hardware applications.
• ALL-METAL SELF-LOCKING DESIGN – Full locknuts feature an all-metal locking design that resists loosening from vibration without the use of nylon inserts.
• FINE THREAD SAE SIZES – Includes commonly used SAE fine thread sizes, providing reliable fitment with compatible bolts and studs used in automotive assemblies.
• AUTOMOTIVE & CHASSIS HARDWARE – Ideal for suspension components, chassis hardware, engine accessories, and other applications requiring vibration-resistant fasteners.
• CONVENIENT SHOP ASSORTMENT – Organized assortment kit keeps commonly used lock nuts available for repairs, fabrication projects, maintenance work, or garage inventory.