You may also like
Nuts 5/16-18 Hx Keps Locknut St-zn (Jar 100)
Features
- External Tooth Lock Washer Attached
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Head Width:
- 0.489 - 0.500 in.
- Fastener Height:
- 0.258 - 0.273
- Fastener Width:
- 0.557 - 0.577
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Hardness:
- Rockwell C38-44
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Lock_Nut_Steel_Zinc_and_18-8.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 1.2 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 18
- Washer Od:
- 0.579 - 0.592 in.
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Lock Nut
- Type2:
- Hexagonal Lock Nut
- Series:
- JTLN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Lock Nut
- Product Material:
- Steel
Metallics JTLN6 – Frequently Asked Questions
1) What thread size does the Metallics JTLN6 keps locknut take?
The JTLN6 is a 5/16-18 keps locknut, so it threads onto 5/16 inch diameter bolts, rod, or studs with 18 threads per inch (the standard UNC coarse pitch for 5/16). It will not run onto 5/16-24 fine thread.
2) Do I need a separate lock washer with a keps nut?
No. The JTLN6 has an external tooth lock washer already attached and free to spin on the nut body, so it is a one-piece assembly. You drop the nut on and tighten; the washer teeth bite the mounting surface as it seats. That is the point of a keps nut, one part instead of two on an assembly line or in a panel.
3) Is this locknut hardened enough to resist stripping, and is it Buy American compliant?
Hardness on the JTLN6 runs Rockwell C38-44, which is a hardened steel nut rather than a soft commercial grade. On procurement: it is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your project carries a domestic-sourcing clause, this part will not satisfy it.
4) Will a 1/2 inch wrench or socket fit this locknut?
Yes. The hex across flats on the JTLN6 measures 0.489 to 0.500 inch, which is a 1/2 inch wrench or socket. Overall across the corners the nut runs 0.557 to 0.577 inch, and the attached washer outside diameter is 0.579 to 0.592 inch, so a deep socket clears the washer without binding on it.
5) Are these zinc locknuts OK for an outdoor or damp install?
The JTLN6 is zinc plated steel. Zinc plating handles normal indoor and protected-exterior electrical and mechanical work, but it is not stainless. For wet, coastal, or washdown locations use an 18-8 stainless keps nut instead.
6) How is the Metallics JTLN6 packaged and what is the minimum order?
Sold by the jar of 100 pieces, and the jar is the order minimum, so 100 is the smallest buy. Jar weight is 1.2 lbs. Metallics also makes other sizes and quantities of this keps locknut available by request.
7) What are these keps locknuts actually used for on the job?
Electrical, plumbing, and HVAC work: strut and channel assemblies, hanger rod and clip hardware, panel and enclosure fastening, equipment mounting where you want a vibration-resistant nut that does not need a loose washer. Anywhere a crew is setting a lot of 5/16-18 hardware and you want fewer loose pieces in the bucket.
8) Can a keps nut be reused after I take an assembly apart?
Treat it as single-use for locking purposes. The external tooth washer on the JTLN6 locks by biting into the mating surface as it seats, and once those teeth have deformed and marked the material the holding action on a second installation is reduced. With 100 nuts in the jar, replace rather than reuse.
How fast can I get the Metallics JTLN6 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 JTLN6 come with a warranty?
Absolutely. The Metallics JTLN6 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 JTLN6?
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 JTLN6 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.