Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

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
1092
Review
 4.7 out of 5
1092 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.
1092 Customer Reviews

Lock your Nuts

I bought these for my house in the Philippines because they don't have them there. Best lock nuts ever.

September 12, 2026
From 3_SLASH_8-in x 16 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Zink nylon nut great

Would Recommend

Ive purchased this item in the past. I'm doing a lawn tractor upgrade on my deck. I'm using this nylon nuts to hold my deck wheels in place, so they don't get loose and fly off.

September 9, 2026
From 3_SLASH_8-in x 16 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Perfect for the intended use...

Would Recommend
September 9, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Great Nuts!

Would Recommend

I try to use nylon insert nuts whenever I can. Crush washers are basically useless. The threads were perfect, the finish was bright. Nylon inserts prevent vibration from loosening the hardware.

September 8, 2026
From 1_SLASH_4-in x 20 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Works as designed

Would Recommend

Works as designed

September 7, 2026
From 1_SLASH_2-in x 13 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Good buy

Would Recommend

Needed a good lock nut for swing arm on tractor

September 7, 2026
From 5_SLASH_8-in x 11 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Not sure what you want here.

Would Recommend

This was just what I needed to get the job done.

September 7, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Works as expected

Would Recommend

Exactly what I needed to replace two lost nuts that wheels on a cart.

September 5, 2026
From 1_SLASH_4-in x 28 Zinc-plated Steel Nylon insert Nut 2 Count Verified Purchaser
Was this Review Helpful ?

Holds tight forever

These lock nuts have never failed me. I use these on all my finishing work. I don’t have to fool with lock washes with these nuts. Once tight, always tight

September 4, 2026
From 1_SLASH_4-in x 20 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?