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Nut 3/8-24 Hx Jam Nut FT St-Zn (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Nuts
Metallics JNF165J – Frequently Asked Questions
1) Is the Metallics JNF165J a coarse or fine thread nut?
Fine thread. The JNF165J is a 3/8-24 nut, which is the UNF (fine) pitch for 3/8 inch diameter. It will not thread onto a 3/8-16 coarse rod or bolt, so match it to fine-thread studs, all-thread, or fixture stems before you order.
2) Will a 3/8-24 jam nut work on 3/8 inch threaded rod for hanging conduit or fixtures?
Only if the rod is fine thread. Most 3/8 inch all-thread sold for hanging conduit, strut, and fixtures is 3/8-16 coarse, and the JNF165J is 3/8-24. Check the rod pitch first; fine-thread 3/8-24 shows up more often on fixture stems, studs, and machined assemblies than on building all-thread.
3) What is a hex jam nut used for instead of a standard hex nut?
A jam nut is a thinner hex nut, roughly half the height of a standard hex nut, used to lock a standard nut in place or to set position on a threaded stud where there isn't room for full-height hardware. The JNF165J is the 3/8-24 fine thread version. If the nut is carrying the main load by itself, use a full-height hex nut instead.
4) Are these 3/8-24 jam nuts plated for corrosion resistance?
They're steel with a zinc plating, which is a general indoor and dry-location finish. For wet, exterior, or corrosive environments, zinc-plated steel is not the right choice; specify stainless or hot-dip galvanized hardware for those openings.
5) How do Metallics JNF165J jam nuts come packaged?
They ship in a jar of 100 pieces, which is the bulk pack electricians and MRO stockrooms keep on the truck or shelf for threaded rod and fixture stem work.
6) Is the JNF165J fully threaded all the way through?
Yes, it's a full-thread nut, so the 3/8-24 threads run the entire height of the hex. There is no unthreaded lead-in or chamfered pilot section to account for when you're stacking it against another nut.
How fast can I get the Metallics JNF165J 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 JNF165J come with a warranty?
Absolutely. The Metallics JNF165J 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 JNF165J?
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selection,
installation tips, and troubleshooting. Contact Us
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