These nylon insert stop nuts, also known as lock nuts, are ideal to 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.
Stop nuts are designed to be fastened to a bolt when mechanically joining materials
Zinc finish offers moderate corrosion resistance
Install with hand tools such as a combination wrench
Nylon insert offers added security against loosening from vibration
Recommended for use with bolts and washers of a similar size and finish
Parts feature coarse 1/4-in-20 screw thread