This 1/4" Black Phosphate Stop Nut has a nylon insert to help securely fasten a bolt when connecting materials. Use these hexagonal nuts with bolts and washers of the same material, finish and grade. The nylon ring inside the nut creates rotational resistance when displaced by a mating male threaded fastener, thus preventing loosening. The nylon insert also helps resist vibration and adds extra corrosion resistance.

Features & Specifications

• 1/4"-20 black phosphate stop nut with a nylon insert
• Use for fastening to a bolt when mechanically joining materials
• Nylon insert for added security to keep nut in place
Use with bolt and washer of the same material, finish, and grade
• Coarse thread for durability
• Use for any indoor/outdoor projects
• Sold & priced individually