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1/2-in x 20 Zinc-plated Steel Nylon insert Nut 2 Count

Ratings & Reviews for Hillman 1/2-in x 20 Zinc-plated Steel Nylon insert Nut 2 Count

4.7
968
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Review
  4.7 out of 5
971 Reviews


95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these lock nuts for exceptional holding power under vibration and stress, with many noting they work like a nut and lockwasher combined. Reviewers consistently highlight smooth threading, precise fit, and solid build quality that meets expectations for heavy-duty applications like securing casters and platform beds. The dual functionality eliminates the need for separate lock washers, saving time and space in hard-to-reach areas. Most customers find them reliable and cost-effective. A few isolated reports mention cross-threading, but these represent a negligible fraction of feedback. Overall, reviewers strongly recommend them for dependable locking performance.

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

 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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Speed Code did not work, wasted my time.

 Would Recommend

I selected 12 Stop Nuts, placed them in the bag provided and wrote the TFU Speed Code on the bag. When I checked out the cashier said the Speed Code did not work! She tried locating the bar code in a folder but could not find it. I had to trek all the way back to their location a take a pic of fhe bar code. Very frustrating experience!!!

July 6, 2026
From 1_SLASH_4-in x 20 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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Zinc lock nuts

 Would Recommend

I bought these for the bolts, perfect fit. They're locknuts too. I have used them ind the past and the zinc coating is resistant to rusting and corrosion.

July 5, 2026
From 1_SLASH_4-in x 20 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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Stainless #6 locknuts

 Would Recommend

These fit a Metric bolt perfect!!! Very well made locknuts.

July 5, 2026
From 6mm x 1.00 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
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nuts and bolts

 Would Recommend

good quality

June 30, 2026
From 6mm x 1.00 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
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Doesnt stay tight

It does not stay tight

June 24, 2026
From 6mm x 1.00 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
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Response from Customer Service@Hillman

Thank you for your feedback, we have noted your feedback and are reviewing possible options to improve this productFrom 3_SLASH_8-in x 16 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser

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Great Lock Nut

 Would Recommend

Solid for non slip requirements

June 22, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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Price

 Would Recommend

Holds goods

June 22, 2026
From 3_SLASH_8-in x 16 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
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