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uxcell Hex Lock Nuts - M3 x 0.5mm Carbon Steel Nylon Insert Self-Locking Nuts for Fasteners, 50Pcs Black

Free shipping on orders over $29.99

$6.19

$ 2 .99 $2.99

In Stock

1.Size:M4 X 0.7mm


About this item

  • [M3 Metric] - Thread Dia: M3; Thread Pitch: 0.5mm
  • [Size] - Width: 5.5mm/0.22"; Height: 4mm/0.16"
  • [Material] - Made of carbon steel, finish with zinc-plated for good rust resistance, corrosion resistance, and oxidation resistance.
  • [Feature] - With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque after long-term use, and have a good fastening effect.
  • [Application] - Great for replacing broken or missing nuts. Widely used for repairing furniture or household appliances, automobile, industries, workshops, engineering machinery, ship, DIY, handicrafts, etc.


Descriptions:
Made of carbon steel, zinc plating finish, high hardness and corrosion resistance. Using nylon inserts, these lock nuts greatly reduce loosening under vibration and torque.
Used in conjunction with bolts, washers, or screws as fasteners when mechanically joining materials together.
Can be widely used in the machinery industry, instruments, electronic products, garage, home appliances, furniture, ship assembly, etc.
Product Specifications:
Material: Carbon Steel
Finish: Zinc Plated
Color: Black
Thread Size: M3
Thread Pitch: 0.5mm/0.02"
Width: 5.5mm/0.22"
Height: 4mm/0.16"
Package Content:
50 Pcs x Hex Lock Nuts


Bwake
Reviewed in Canada on January 13, 2025
They worked and were as described
gmart
Reviewed in the United States on September 27, 2024
machining was very important here....these fit the bill...
Mr. Andy
Reviewed in Canada on September 14, 2024
just as described in product listing.
Yuval Scheiner
Reviewed in the United States on August 31, 2024
Thank you for the fast shipment :-)
Stephen D. Wall
Reviewed in the United States on August 26, 2024
exactly as advertised, not great, but perfectly good for low-torque, low-tensile needs.
DJ
Reviewed in the United States on June 5, 2024
Not much to say, I wanted black locking nuts and these worked perfectly. Very happy with the look and result.
Mike in PA
Reviewed in the United States on June 24, 2024
I was in need of some hardware to repair the cutting blade on a Black & Decker hedge trimmer. I believe the OEM hardware is SAE, but I just bought metric which is close enough to the SAE spec. I originally tried a 12 mm bolt but had to use 14 mm to ensure the threads were engaged in the nylon lock nut. I then ground off some threads with an angle grinder. This hardware works great, the only thing I wish is that it would be slightly larger, as I had to use some washers underneath.
Jon
Reviewed in Canada on March 10, 2024
These are a perfect fit.
Bob Fuller
Reviewed in the United States on November 14, 2024
The fit the M3 bolts that needed nuts. They were scared and could barely hang on to the 3d printed trailer they were in, but now that they have nuts, they are up to the task. The addition of the nylon insert makes the nuts even better at doing their job.
JB
Reviewed in the United States on October 6, 2024
Here nut. It squeeze. Nut be screw by bolt. Make so tight. Hold long time. Is belly gūd.
Kanan sciacca
Reviewed in the United States on April 11, 2024
Been using this brand on hardware for a while, consistent quality. I use it for Rc cars and crawlers and never had an issue. Much better than buying individually at local stores.
M G
Reviewed in Canada on October 28, 2023
First things first, let's talk about their dimensions. These M3 Metric nuts have a thread diameter of M3 and a thread pitch of 0.5mm. They measure a width of 5.5mm (or 0.22 inches) and have a height of 4mm (or 0.16 inches). Talk about being compact and cute!They are made of carbon steel and are finished with zinc plating. Why is this important, you ask? Well, it gives them excellent rust, corrosion, and oxidation resistance. So, even if you accidentally leave them out in the rain (we've all been there), these little guys won't let you down.These lock nuts come with a nylon insert that works wonders. It's like having a personal assistant for your nuts. This insert significantly reduces loosening under vibrations and torque after long-term use. So, whether you're working on a project that involves severe shaking or you tend to over-tighten things (no judgment here), these lock nuts have your back.These lock nuts are not picky. They are great for replacing broken or missing nuts in various scenarios. Whether you need to fix that wobbly chair, repair a household appliance, or even get your hands dirty with DIY projects, these lock nuts are up for the challenge. They are also widely used in industries, workshops, engineering machinery, ships, and even handicrafts.
Andrew
Reviewed in Australia on June 19, 2021
The product matched the description. The product works well and suits M5 bolts.
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