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An assortment of black zinc serrated whiz nut variants from The Hillman Group. Whiz nuts are hex nuts with a scored, or serrated, built-in washer to resist vibration. The flange distributes the pressure of the nut, which reduces the chance of damage and makes it less likely to loosen. Variants included in this assortment range from #6 to 1/2" in coarse & fine thread size. Full assortments of #38680 contain nine (9) refills comprised of Hillman item numbers #38681 - #38689.
- Whiz lock nuts offer resistance to loosening by vibration or torque
- Resistant to vibration
- Included variants range from #6 to 1/2 in. in coarse thread size
- Made of high-strength steel
