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.

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
See Product Details
Review
  4.7 out of 5
1042 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.
1042 Customer Reviews

Buy it.

 Would Recommend

Worked well.

May 17, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Helped tighten the brake - finally

Perfect fit for a ProBasics wheelchair brake replacement part. The brake lock is secure once again.

May 16, 2026
From 6mm x 1.00 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
Was this Review Helpful ?

It does what it’s supposed to do

 Would Recommend
May 16, 2026
From 5mm x 0.8 Zinc-plated Steel Nylon insert Nut 6 Count Verified Purchaser
Was this Review Helpful ?

Great Nuts

 Would Recommend

Perfect nuts for my project.

May 15, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Excellent

Easy to find

May 14, 2026
From 3mm x 0.5 Zinc-plated Steel Nylon insert Nut 8 Count Verified Purchaser
Was this Review Helpful ?

Quality product

 Would Recommend

always great quality long lasting product

May 13, 2026
Verified Purchaser
Was this Review Helpful ?

Make sure you choose either standard or metric

 Would Recommend

Easy to use. The locking nylon is very durable and easily tightened

May 13, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Does what it’s supposed to.

 Would Recommend

Product was fine. Hard to find the right one to fit.

May 13, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Choose the correct size if purchasing.

 Would Recommend

This nut fit the correct screw perfectly.

May 12, 2026
From 6mm x 1.00 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
Was this Review Helpful ?

Nothing

It’s a nut

May 11, 2026
From 5_SLASH_16-in x 18 Zinc-plated Steel Nylon insert Nut Count Verified Purchaser
Was this Review Helpful ?

Perfect size

 Would Recommend

Worked perfectly when replacing old rusty hardware.

May 11, 2026
From 5mm x 0.8 Zinc-plated Steel Nylon insert Nut 6 Count Verified Purchaser
Was this Review Helpful ?

holds tight

 Would Recommend

locking nut

May 10, 2026
From 7_SLASH_16-in x 14 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
Was this Review Helpful ?

Great product

 Would Recommend

Like. It was what we needed.

May 9, 2026
From 8mm x 1.25 Zinc-plated Steel Nylon insert Nut 4 Count Verified Purchaser
Was this Review Helpful ?