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Nuts 1/4-20 Hx Keps Locknut St-zn (Jar 1000)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Country Of Origin:
- China
- Division:
- Electrical H1
- Fastener Head Width:
- 0.423 - 0.438 in.
- Fastener Height:
- 0.178 - 0.193
- Fastener Width:
- 0.482 - 0.505
- Hardness:
- Rockwell C38-44
- Language Code:
- EN
- Order Minimum Imperial:
- 1000
- Order Minimum Uom Imperial:
- TH
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 7.2 lbs
- Product Width:
- 4.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 20
- Washer Od:
- 0.494 - 0.506 in.
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Lock Nut
- Type2:
- Hexagonal Lock Nut
- Series:
- JTLN
- Product Details:
- Hexagonal Lock Nut
- Product Material:
- Steel
Metallics JTLN5M – Frequently Asked Questions
1) What thread size does the Metallics JTLN5M keps locknut take?
It's a 1/4-20 keps nut, so 1/4 inch diameter at 20 threads per inch. It runs onto any standard 1/4-20 UNC bolt, screw or threaded rod. If the rod on your job is 1/4-28 fine thread, this is the wrong nut.
2) Do I still need a separate washer with a keps nut?
No. A keps nut carries its own free-spinning toothed washer, and on the JTLN5M that washer measures 0.494 to 0.506 inch outside diameter. The washer bites the work surface as you tighten, which is what keeps the nut from backing out under vibration, so you're installing one piece instead of a nut plus a separate lock washer.
3) How many nuts come in a jar of Metallics JTLN5M?
They ship 1,000 to a jar, and 1,000 pieces is also the order minimum. The filled jar weighs 7.2 lbs. That's bulk-rate packaging for panel work, strut and box mounting where a crew burns through 1/4-20 hardware by the handful rather than a counted bag.
4) Are these keps nuts corrosion resistant enough for outdoor or damp locations?
The JTLN5M is zinc plated steel. Zinc plating handles indoor and normally dry conditions and gives limited protection in damp areas, but it is not stainless and it is not a marine or continuously wet-location fastener. For exterior exposure or washdown areas, specify a stainless keps nut instead.
5) Will these 1/4-20 keps nuts satisfy a Buy American requirement on a federal job?
The JTLN5M is flagged compliant for both Buy American and ARRA in our record, while the country of origin is listed as China. If your contract requires domestic melt and manufacture rather than contract-level compliance, have your spec reviewer confirm which standard applies before you submit.
6) Can I reuse a keps nut after I take it apart?
Treat them as single use. The toothed washer on these nuts locks by digging into the mating surface, so once it has been drawn down and backed off, the teeth are deformed and the locking action is reduced. The nut body is hardened to Rockwell C38-44, but that hardness is the washer-teeth bite, not a reusable prevailing-torque feature. With 1,000 in the jar there's no reason to re-run an old one.
7) Can I get this keps locknut in another size or a smaller quantity?
The JTLN5M itself is the 1/4-20 size in a 1,000-piece jar. Other sizes and quantities in the Metallics JTLN keps locknut series can be had by request, so if you need 10-24, 8-32 or a smaller count for a service truck, ask rather than buying a thousand.
How fast can I get the Metallics JTLN5M 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 JTLN5M come with a warranty?
Absolutely. The Metallics JTLN5M 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 JTLN5M?
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 JTLN5M 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.