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Nuts 3/8-24 Hx Ny-Ins Locknut St-zn (Jar 100)
Features
- Made to American Standard Dimensions
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- U
- Buy American Compliant:
- U
- Country Of Origin:
- MUL
- Dimensional Standard:
- ASME B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.438 - 0.468 in.
- Fastener Head Width:
- 0.551 - 0.564 in.
- Fastener Height:
- 0.335
- Field Application:
- Width is Wrench Size
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nylon_Insrt_Lck_Nut_Steel_Zinc.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 1.74 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 10
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nylon Insert Lock Nut
- Type2:
- Hexagonal Nylon Insert Lock Nut
- Series:
- JNYN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nylon Insert Lock Nut
- Product Color:
- Silver
- Product Material:
- Steel
Metallics JNYN171 – Frequently Asked Questions
1) Will a nylon insert lock nut hold on equipment that vibrates, like a rooftop unit or a motor mount?
That is what this nut is built for. The nylon collar in the top of the Metallics JNYN171 is slightly undersized, so the bolt threads cut into it and the friction keeps the nut from backing off under vibration. No lock washer and no thread locker needed. One limitation: nylon is a plastic insert, so it is not a choice for high heat service, and the locking friction drops off each time you reuse it.
2) How many nuts come in a jar of the Metallics JNYN171?
One hundred nuts per jar, and 100 count is also the order minimum, so a jar is the smallest buy. The filled jar weighs 1.74 lbs, which is worth knowing if you are staging several on a service truck.
3) Can I reuse these nylon insert lock nuts after I take the assembly apart?
Best practice is to use a fresh one. The nylon ring on this style of locknut takes a permanent thread impression the first time it is run on, so the prevailing torque falls with each removal. At 100 nuts to the jar it is cheap insurance to replace rather than reinstall on anything safety related.
4) Are these Metallics locknuts standard dimensions, or will they foul a tight counterbore?
They are made to ASME B18.16.6, the American standard for prevailing torque lock nuts, with threads to ANSI/ASME B1.1. Head height runs 0.438 to 0.468 inches and the nut height value given is 0.335. If you are fitting into a recess or against a close bracket, work off the 0.468 inch high end.
5) Will zinc plated steel locknuts hold up outdoors or in a damp mechanical room?
The JNYN171 is steel with a zinc finish, silver in appearance. Zinc plating handles indoor mechanical rooms, strut runs and damp interior work fine. For direct coastal exposure, continuous wetting or chemical washdown, step up to stainless instead, since plated steel will eventually bloom rust at the cut threads.
6) Is the Metallics JNYN171 locknut right hand thread?
Right hand thread, so it tightens clockwise like any conventional fastener. There is no left hand version in the JNYN series, so you do not have to specify direction when ordering.
7) Can I get this Metallics nylon insert locknut in other sizes or pack quantities?
Yes. The JNYN line runs in other thread sizes and other pack quantities by request beyond the 100 count jar, so if you are standardizing a facility on one locknut style across several bolt diameters you can stay within the same series and finish.
8) Where is the Metallics JNYN171 locknut made, and does it meet Buy American requirements?
Country of origin is listed as multiple, meaning Metallics sources the JNYN171 from more than one country depending on the production run. For a federally funded job with a domestic sourcing clause, you will need origin confirmed against the specific lot rather than relying on the catalog entry.
How fast can I get the Metallics JNYN171 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JNYN171 come with a warranty?
Absolutely. The Metallics JNYN171 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JNYN171?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JNYN171 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.