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Nuts 1/4-28 Hx Ny-Ins Locknut SS (Jar 100)
Features
- Made to American Standard Dimensions
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Country Of Origin:
- MUL
- 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
- Hardness:
- Rockwell B95-C35
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nylon_Insrt_Lck_Nut_18-8_SS_316_SS.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:
- 0.83 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 28
- 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 Details:
- Hexagonal Nylon Insert Lock Nut
- Product Material:
- 18-8 Stainless Steel
Metallics JNYN169SS – Frequently Asked Questions
1) Will the Metallics JNYN169SS locknut thread onto a 1/4-28 fine thread bolt?
Yes. The JNYN169SS is a 1/4-28 UNF nylon insert locknut, right hand thread, cut to ANSI/ASME B1.1 at 28 threads per inch. It will not fit a 1/4-20 coarse bolt, which is the more common hardware store thread, so check the bolt before you order. Fine thread gives you more holding per turn and finer torque control on vibration-prone connections.
2) Do these Metallics locknuts meet Buy American requirements for a federal job?
The JNYN169SS is flagged both Buy American compliant and ARRA compliant in the Metallics data, which is what a government or institutional spec package usually asks for. Country of origin is listed as multiple, so if your submittal needs a single named origin, confirm the origin on the lot you receive.
3) Are these stainless locknuts okay for outdoor or wet electrical enclosures?
They're 18-8 stainless steel, which is the standard austenitic grade for general outdoor, damp, and washdown service, so exterior strut, enclosure, and equipment mounting is normal use. For salt spray or coastal marine exposure, 316 stainless is the step up.
4) Can I reuse a nylon insert locknut after taking it off?
The nylon collar in the JNYN169SS deforms around the bolt threads to create the locking friction, and that deformation is what wears. A couple of removals is typical in the trade, but on anything safety-related or vibration-loaded, install a fresh one. With 100 nuts to a jar, you have replacements on hand.
5) Is there a heat limit on nylon insert locknuts like these?
The locking element is nylon, so it is the temperature limit, not the stainless. Keep these off hot ballast housings, luminaire bodies, or anywhere near sustained high heat. For elevated temperature joints use an all-metal prevailing torque or distorted thread locknut instead.
6) What dimensional standard do these hex nylon insert locknuts follow?
Dimensions follow ASME B18.16.6, the standard for prevailing torque nuts, and threads follow ANSI/ASME B1.1. That means the hex and height match what a drawing calling out a standard 1/4-28 nylon insert locknut expects, so it drops into a spec'd assembly without clearance surprises.
7) How hard are these stainless locknuts, and will they gall on a stainless bolt?
Hardness is Rockwell B95-C35. Stainless on stainless is prone to galling, so run the nut on slowly, avoid impact drivers, and use an anti-seize on the bolt threads if you're torquing to spec.
8) How many nuts come in a jar of Metallics JNYN169SS?
100 count per jar, and 100 is the order minimum. The packed jar weighs 0.83 lbs. Metallics notes other sizes and quantities are available by request.
How fast can I get the Metallics JNYN169SS 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 JNYN169SS come with a warranty?
Absolutely. The Metallics JNYN169SS 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 JNYN169SS?
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installation tips, and troubleshooting. Contact Us
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