Hillman 3/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 100-Pack
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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4.2 ★★★★★
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B
Verified Purchase
Beatrice A Kirchner
San Leandro, US
★★★★★ 5
beautiful
Color: XY010-Silver
Purchased for granddaughter to keep in her bathroom. She normally removes jewelry and leaves on sink. A $40 bracelet was lost into the waste basket so this will prevent that. Came flat so I gently bent the branches and it is now a 3 dimensional tree . Beautiful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2022
M
Verified Purchase
Michael
Chelsea, US
★★★★★ 5
Awesome -- they work perfectly
Style: Updated 3.46in Magnet L Red Hooks 2PCS
Got these to store a DeWalt cordless drill and impact driver on the side of a Gladiator garage cabinet -- and they work perfectly for that. The magnet is incredibly strong, easily supporting the bare tools, and seems even to work perfectly well with an 8ah XR battery on the tool -- not that it's necessary since I don't store them like that. I like that the magnet is padded with rubber. Very nice units, I will get more for sure to store other items.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
B
Bluesman
Waukegan, US
★★★★★ 5
Incredibly strong magnets and thick, robust hooks. Excellent combination!
Style: Updated 3.46in Magnet L Red Hooks 2PCS
These magnetic hooks are really strong. Seriously! Each part is made to carry weight and last. The hooks are built out of thick steel stock. They bolt up to large magnets that grab onto steel surfaces and won't let go. The cabinets in my shop are all steel so these worked perfectly on the sides of the lower units. I have a few #12 AWG extension cords that are bulky and heavy. Truthfully, I didn't think these hooks would handle them. They do without any issue. Another application is a 30' long #10/4 AWG SO cable that powers my powder coating oven. It's usually unplugged and wrapped up. It would often end up on the floor where it was constantly in the way. The outside of the oven is all steel but I didn't want to make holes in it for cable hangers. Again, I didn't think that these magnetic hooks could possibly be strong enough to handle the weight of that cable but they do. And once they're attached, it takes a lot of effort to remove them! Amazing performance!! I'm thrilled with these magnetic hooks. They are super strong and, obviously, simple to use. Importantly, they stay in place as they should. I wholeheartedly recommend these hooks to anyone. Great product! Incredibly strong magnets and thick, robust hooks. Excellent combination!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
A
Andrea
Houston, US
★★★★★ 5
Great for the storm shelter!
Style: Updated 3.46in Magnet L Red Hooks 2PCS, Style: Updated 3.46in Magnet L Red Hooks 2PCS
In our storm shelter we had some lights that we tried to hang up, multiple times, with no luck! Then I found these garage hooks. They are overkill for the lights, but I’m so happy that we now have lighting in the storm shelter. I could think of so many other uses for these. They strength of the magnets is awesome!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
K
KindaPicky
Charlottesville, US
★★★★★ 4
Magnet is super strong but hooks are not adjustable
Style: Updated 3.46in Magnet L Red Hooks 2PCS, Style: Updated 3.46in Magnet L Red Hooks 2PCS
I ordered this set of Mutuactor magnetic hooks because I was tired of thinking I had things organized and then finding previously hung magnets have slid down the wall. It was a first for me to have to assemble a magnetic hook. This was made slightly more difficult by requiring a wrench. So many items these days arrive with a disposable little hex wrench or whatever is needed for assembly. Not in this case. Maybe the manufacturer assumes if you are spending $15 per magnet to hang your tools you have a wrench handy. Anyway, I got my wrench and found no instructions. I know from life that the order is bolt-washer-lock washer-nut. The next question arose when I found one bolt and several holes... hmmmm. It looks like they wanted to provide the option to screw the hooks directly to the wall. I am not sure the average person would pay that price just for a hook, though. I chose a hole and it seems to be the right one. The good news is I was quickly in business. Soon one magnet was snatched by my husband for his rolling tool cart. He hung his (very heavy) Sawzall and the magnet never moved. He liked the rubber coating that protects his tools. I chose to take advantage of the amazing grip of this thing to hang my most used (and also very heavy) all-clad pan from the side of my fridge. The refrigerator had some sort of glossy powder coat and magnets hold well if you try to pull them straight off but end up sliding down anyway. This is where I came to appreciate the rubber shoe of this magnet. It protects my fridge but I think it plays an essential part in the grip strength of the magnet. I can not slide it around - I need to use two hands to pull it off then place it in another position. To give a magnet strength example I had one magnetic hook on my desk as I was writing this review. My nearby desk-size scotch tape dispenser came sliding over and the magnet grabbed it. I was able to lift the tape dispense just by the magnet grabbing the little piece of metal serrated teeth that cut the tape. There is no other metal in my dispenser. That's it! In summary, four stars because it REALLY grips and holds a lot of weight. Minus a star because I do think they are a little expensive, they required assembly without tools or instructions, and the hooks themselves are not adjustable. I have some similar magnetic hooks and you can move the two prongs apart or together depending on what your tool size is. These prongs are strong and firm and are not moving and this cuts down of the number of uses a little bit.
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Reviewed in the United States on March 12, 2026

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