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304 Stainless Steel Metric Lock Nuts
M2 / M2.5 / M3 / M4 / M5 / M6 / M8 / M14
304 Stainless Steel Imperial Lock Nuts
2-56 / 4-40 / 8-32 / 10-24 / 10-32, 1/2, 1/4, 3/8, 5/16
Black Metric Lock Nuts
M2 / M2.5 / M3 / M4 / M5 / M6 / M8 and M2-M8 Assortment Kit
Black Imperial Lock Nuts
4-40, 6-32, 8-32, 10-32, 1/4
Metric Nylock Size Map from M2 to M8
Size Map
Nylon lock nuts differ from a standard hex nut in that they have a nylon insert secured within the nut. The nylon insert is located in a tapered section located at the back of the nut. When you install the nylon lock nut onto a bolt or threaded stud, the nylon insert wraps around the threads and locks the nut in place. This gives a nylon lock nut a distinct advantage over a lock washer when the bolt or threaded stud is subject to vibration, as the nylon lock nut is unaffected by vibration.
How to Use a Nylon Lock Nut
- Examine the nylon insert of the nylon lock nut to ensure that the insert is not damaged.
- Thread the nylon lock nut onto the bolt or threaded stud and turn the nut clockwise with your hand until it no longer turns. This will be the point that the nylon insert contacts the top thread of the fastener.
- Place the socket that matches the nylon lock nut on the 3/8 inch drive ratchet.
- Slide the socket onto the nylon lock nut and turn the handle of the ratchet clockwise to turn the nylon lock nut onto the fastener. You will feel some resistance from the nylon lock nut as you turn it onto the fastener. This is created by the nylon insert and is completely normal.
- Continue turning the ratchet handle until the nylon lock nut seats tightly against the surface of the material you are securing with the nut.
- Inspect the nylon insert of the lock nut to ensure that it is intact after installation.
Applications
Nylon lock nuts are used across a wide variety of industries, including in appliances, computers, furniture, medical equipment, vehicles, sheet metal, and aircraft. Heavier nylon insert lock nuts are used in buildings, on bridges, and in railroad equipment.
Old and Stiff
Reviewed in Canada on February 6, 2025
Very high quality, and strength.A great lock that never moves.Packaging/case is of decent quality.
Loud410
Reviewed in the United States on January 20, 2025
👍🏿
M/G
Reviewed in the United States on January 2, 2025
Good Quality Stainless Hardware, not sure else what to say.
ChristheITguy
Reviewed in the United States on March 10, 2024
Great quality, works as expected
Dan Cotto
Reviewed in the United States on October 6, 2024
Great
Gerard T. Lee
Reviewed in the United States on October 15, 2024
I purchased SS machine screws to fix a problem with my golf bag. One of the pins holding one of the folding legs fell out. I needed a self-locking nut because I couldn't tighten the fastener all the way as it would cause the leg to bind. Thus, a nylon insert self-locking nut seemed to be the best option. You receive a small container of nuts ... I was surprised how small the container was.Anyway, I just needed one but now I have an almost "infinite" supply.
Adam R Foshaug
Reviewed in the United States on January 21, 2024
Bought these to use for my furitek Cayman Pro and the other FMS axles shiny chrome has nylon insert to keep it in place very good quality and quantity.
WamperSnapper
Reviewed in the United States on December 19, 2023
You get a nice amount of nuts for the price and they have a nice amount of lockening torque if that’s what you want to call it, not too tight but loose enough to get it in there without a hassle
K Truman.
Reviewed in the United States on December 10, 2023
I recently purchased the 100-piece set of M3 x 0.5mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts for a project, and they have performed admirably. These lock nuts are well-constructed, showcasing both the durability and quality I was looking for.The locking capability of these nuts is quite decent. The nylon inserts provide a good grip and ensure that the nuts stay in place once tightened. This feature gives me confidence in the security and stability of the connections in my projects.Additionally, the stainless steel material adds an extra layer of durability, making these nuts suitable for various applications where strength and longevity are required.Overall, I'm satisfied with these hex lock nuts. They are effective, reliable, and offer good value for the price. For anyone in need of quality self-locking nuts for their DIY or professional projects, I would recommend giving these a try.
adam
Reviewed in Canada on October 8, 2021
If you own an RC car these are a must have!
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