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Nuts 1/4-28 Hx Ny-Ins Locknut St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- Made to American Standard Dimensions
Manufacturer Resources
Product Specs
- Arra Compliant:
- U
- Buy American Compliant:
- U
- Dimensional Standard:
- ASME B18.16.6
- Division:
- Electrical H1
- Fastener Head Height:
- 0.298 - 0.328 in.
- Fastener Head Width:
- 0.430 - 0.439 in.
- Fastener Height:
- 0.225
- 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:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 0.82 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:
- UNF
- 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 JNYN169 – Frequently Asked Questions
1) What thread size and pitch is the Metallics JNYN169 nylon insert lock nut?
It's a 1/4-28 nut, meaning a 1/4 inch UNF (fine) thread with a right hand direction. Fine thread will not run onto a 1/4-20 coarse bolt, so match the bolt or stud before ordering. Thread form follows ANSI/ASME B1.1.
2) How much bolt stick-out do I need to fully engage a nylon insert locknut?
Plan on the fastener projecting past the nut's full height. The nut height is listed at 0.225 and the hex head height at 0.298 to 0.328 inch, and the nylon collar sits above the threaded portion, so the bolt has to pass completely through the steel threads to bite into the nylon. A bolt that stops short of the collar gets no locking action at all.
3) Should I use a nylon insert locknut or a regular hex nut with a lock washer?
A nylon insert locknut like the JNYN169 does the job of both: the nylon collar deforms around the thread and resists vibration loosening without needing a separate washer, and it holds on smooth surfaces where a split washer would just dig in. Choose a plain nut plus washer when you need a thinner stack or a reusable joint that gets taken apart often, or when the joint sees heat, since nylon is a plastic element and these are not a high-temperature nut.
4) Are these locknuts suitable for damp or outdoor electrical work?
The nut is steel with a zinc finish, which gives moderate corrosion resistance for indoor and protected outdoor use. For sustained wet, washdown, or coastal exposure, a stainless nut is the better call.
5) Will these nuts meet a spec calling for standard dimension hex nylon insert locknuts?
Dimensions follow ASME B18.16.6, the standard covering prevailing torque nuts, and the threads follow ANSI/ASME B1.1. That gives a submittal a dimensional standard to reference for institutional or MRO purchasing where a drawing calls out standard American hex nut geometry.
6) How are the Metallics JNYN169 locknuts packaged, and what is the minimum order?
They ship in a jar of 100, and 100 count is the order minimum, so one jar is the smallest buy. The packed jar weighs 0.82 lbs, which makes it easy to keep a few on a service van or in a shop bin without a bulk box.
7) Can I reuse a nylon insert locknut after taking the joint apart?
Once or twice at most. Each time the bolt cuts into the nylon collar the locking grip drops off, so for anything that holds a panel, a fixture, or a run of strut in service, back out the old one and set a fresh nut from the jar of 100. That is part of why these are bought by the hundred rather than individually.
How fast can I get the Metallics JNYN169 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 JNYN169 come with a warranty?
Absolutely. The Metallics JNYN169 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 JNYN169?
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installation tips, and troubleshooting. Contact Us
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