Hillman Zinc-Plated Steel USS Nylon Lock Nut 100 pk

Zinc-plated nylon insert stop nuts are ideal for securely fastening a bolt when connecting materials. The nylon ring inside the nut creates rotational resistance when displaced by a mating male threaded fastener, thus preventing loosening.

• The insert offers additional security to keep nut in place
• Zinc plating offers moderate protection against rust and corrosion
• Use with bolts or washers of the same thread size and finish
• Matches bolts or rods of a 1/4 inch-20 coarse thread size