Tan, Stainless and more
Nominal Size: 5/16"Thread: 18 TPI (Coarse)Width Across Flats: 1/2"Height: 11/32"Across-Corners Size: 9/16"Material: Stainless SteelHardness: 18-8Style: KepType: Lock NutWasher Diameter: 37/64"
Box of 10.
A lock nut is a nut that resists loosening under vibrations and torque.
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