Tan, Stainless and more
Nominal Size: 1/4"Thread: 20 TPI (Coarse)Width Across Flats: 7/16"Height: 3/16"Across-Corners Size: 1/2"Material: SteelFinish: ZincHardness: Grade 2Style: KepType: Lock NutWasher Diameter: 1/2"
Box of 40.
A lock nut is a nut that resists loosening under vibrations and torque.
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