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5/16-in x 24 Zinc-plated Steel Nylon insert Nut 2 Count

Ratings & Reviews for Hillman 5/16-in x 24 Zinc-plated Steel Nylon insert Nut 2 Count

4.7
1096
Review
 4.7 out of 5
1096 Reviews


95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these lock nuts for exceptional locking performance, solid build quality, and outstanding value. The nylon locking feature consistently prevents loosening under vibration and torque, outperforming traditional lock washers. Reviewers highlight precise sizing, consistent threading, and perfect fit for mounting hardware and gate locks without modification. Many emphasize dependable performance, affordability, and strong repurchase intent. A few report isolated issues like receiving wrong sizes, but these are rare and do not reflect a pattern of failure.

Customer review summary generated by AI, including incentivized reviews.
1096 Customer Reviews

Solid fastener

Would Recommend

Corrosion-resistant. Solid piece of metal. Does the job needed.

July 25, 2026
From 1_SLASH_4-in x 20 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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Reduces vibration

Would Recommend

Prevents vibration with a nylon insert. Good solid hold

July 25, 2026
From 3_SLASH_8-in x 16 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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They sent me a used non-spec nut.

Would Not Recommend

I don’t even know where you would buy this. It’s half the thickness of the standard nut, and has a beveled edge on the back side of it. I bought four for my brush cutter. Three were standard and the fourth was this. You can see where someone took a star wrench to it and stripped the top half off, that wasn’t me. You’re selling salvage nuts now Lowes? I should’ve just gone to the store myself.

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Response from Customer Service@Hillman

We are very sorry to hear that this product was unsatisfactory and did not meet your expectations. We understand how disappointing that can be. Pleas... Read More

Customer Service@HillmanJuly 24, 2026