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3/8-in x 16 Zinc-plated Steel Nylon insert Nut Count

Ratings & Reviews for Hillman 3/8-in x 16 Zinc-plated Steel Nylon insert Nut Count

4.7
1039
Review
 4.7 out of 5
1040 Reviews


95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these lock nuts for reliable performance and solid construction. Most highlight that the nylon insert holds firmly, prevents loosening under torque, and eliminates the need for lock washers. Reviewers consistently commend the precise threading, perfect fit on bolts, and quality materials. Many note excellent value and say they would buy again. A few mention receiving wrong sizes or isolated packaging issues, but these are rare and do not reflect product quality. Overall, customers consider these dependable for both everyday and demanding applications.

Customer review summary generated by AI, including incentivized reviews.
1040 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
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...

Customer Service@HillmanJuly 24, 2026

I worked.

Perfect, just what I needed. Only needed 1.

July 15, 2026
From 1_SLASH_2-in x 20 Zinc-plated Steel Nylon insert Nut 2 Count Verified Purchaser
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Would Recommend

It was a fine-threaded nut which is very hard to find

July 8, 2026
From 4mm x 0.7 Zinc-plated Steel Nylon insert Nut 8 Count Verified Purchaser
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