SKU: 10423091675

Hillman 3/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack

Sale price$15.29 Regular price$16.99
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Description

Hillman 3/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack3 8 in. USS Nylon Lock Nuts, Zinc Plated Steel (100 Pack) These Hillman nylon insert stop nuts feature a zinc plated steel body for strength with corrosion resistance, and a nylon insert that resists loosening from vibration. Ideal for general fastening where a secure, reusable lock is required. Key Features: Secure Locking: Nylon insert grips threads to prevent loosening from vibrationno lock washer needed Durable Build: Zinc plated steel resists

3/8 in. USS Nylon Lock Nuts, Zinc-Plated Steel (100-Pack)

These Hillman nylon-insert stop nuts feature a zinc-plated steel body for strength with corrosion resistance, and a nylon insert that resists loosening from vibration. Ideal for general fastening where a secure, reusable lock is required.


Key Features:

  • Secure Locking: Nylon insert grips threads to prevent loosening from vibration—no lock washer needed
  • Durable Build: Zinc-plated steel resists rust and corrosion for long service life
  • Standard Sizing: 3/8-16 coarse thread, USS pattern for broad compatibility
  • Bulk Value: 100 pieces per pack for shop and jobsite convenience

Specifications Table:

Specification Details
Brand Hillman
Type Nylon insert stop nut (lock nut)
Callout Size 3/8 inch
Thread Size 3/8-16
Thread Type Coarse (USS)
Material Steel with nylon insert
Finish Zinc-plated
Unit of Measurement USS
Number in Package 100 pack
Packaging Type Boxed
Package Dimensions (L x W x H) 3.5 in x 3.3 in x 2.2 in
Package Weight 1.8 lb

Frequently Asked Questions (FAQ):

Q: What thread size are these nuts?
A: They are 3/8-16 coarse thread (USS).


Q: Do I still need a lock washer?
A: No. The nylon insert provides the locking action, eliminating the need for a separate lock washer.


Q: What materials are these made from?
A: The nuts are steel with a zinc-plated finish and a nylon insert.


Q: How many nuts are included?
A: 100 pieces per retail package.


Q: Where should I use them?
A: Use anywhere vibration could loosen standard nuts—automotive, machinery, and general construction.


Crisp, Industrial Restraint—That Stays Put

These zinc-kissed stop nuts bring a refined utility to any project, a subtle gleam that feels both deliberate and enduring. The nylon insert is the quiet hero—discreet yet unwavering—keeping your lines clean and your fixtures steady. Pair them with brushed hardware for a cohesive, tailored look across cabinetry or exposed shelving. Consider them the elegant anchor of a well-edited, luxe workspace.


Lock in lasting performance—choose this 100-pack of Hillman nylon-insert lock nuts for your next project.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10423091675

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Diego
Charlottesville, US
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
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SMK
Lake Worth, US
★★★★★ 5
This will work but prep is key!
I have an older RV that the gelcoat has dulled and is oxidized, but otherwise in good shape. I have buffed and polished in the past only for it to last a short time. I was looking up different products to try and this one has such good reviews, I thought I would give it a try. I bought the kit with the Poliglow and the Poliprep, with the scrubber and the microfiber glove. I started with the poliprep and it did a great job of gettting the streaks and black marks off. You spend a lot of time scrubbing to your likeness because anything that is still on the gelcoat when you apply the poliglow, it will be locked in there. The Poliglow is like a clearcoat that goes over the gelcoat. You have to build up layers and here are some of the tips and tricks I figured out that really helped my finished RV look great. First, make sure the applicator stays damp, this keeps the poliglow more uniform across the glove. Also, stick it in a zip lock bag when not using, you do not want it to dry out while you are using it. I found out that applying this in direct sunlight in warm temps, is the best method. This allows the poliglow to dry really fast. The first 3 or 4 layers will look streaky and dull but this is ok and as you build up the layers, the shine will come back. I found if you do this when its cooler, the layers do not dry as quick and you will get some permanent streaking or running. I had to remove a section I did in the evening because I noticed this. When in direct sunlight, this gave me the best results with no streaking or running. It dries fast and you can keep working. Like it says, do not do big sections at a time, keep it to small what you can reach sections and build those up and move on. As far as how much to buy? I have a 40 ft toy hauler and I got to kits and I had just enough to finish the whole thing minus the nose cap. I have Durabak on the nose cap, so I dont need to worry about that. I ended up buying one more bottle of the poliglow to have for my maintenance coats. Overall, I am pleased with how my 10 year old RV looks and other than some of the decals show age, it looks new again. If I were to buy a new RV, I would put this on right away and preserve the whole RV including the decals. Its not too expensive and its a lot of work, especially the prep, but it does end up with great results.
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Reviewed in the United States on July 21, 2023
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Gary Watkins
Omaha, US
★★★★★ 5
Excellent shine
Excellent line of products. Looking at the picture, you can see what the camper looked like before the Poli Glow. To the left of the window is the after Poli Glow. It takes some elbow grease (follow instructions well) but well worth it.
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Reviewed in the United States on May 26, 2026
E
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East Coast Curt
Grantham, US
★★★★★ 5
Camping enthusiast approved
One bottle covered my 20ft camping trailer 4 coats and with a little remaining for future touch ups. It definitely increases the gloss. I'm glad I didn't waste my time with wax. This is like an easy wipe on clear coat. I will report back in the future for longevity.
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Reviewed in the United States on May 24, 2026
A
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Amazon Customer
Port Orchard, US
★★★★★ 4
buy more than you think your going to need to get a great shine and look!!
great product and leaves a great shine. The Poli Glow doesn't go as far as the video states and it depends on condition of RV, boat...This is a great product but takes more to get a great shine!!
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Reviewed in the United States on April 16, 2026

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