Lock Nut, Hillman, Polished Stainless, Nylon Insert, 1/2 in x 20

Nylon insert lock nuts are hexagonal nuts used with bolts and washers of the same material, finish and grade. The interior nylon ring 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.

• Polished stainless steel finish for best-in-class corrosion resistance
• Used for fastening to a bolt when mechanically joining materials together
• Nylon insert for added security to keep nut in place