You may also like
Nuts 3/8-16 Cap Nut SS (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- Proper Finish When Covering Exposed Threaded Bolt Ends
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Head Width:
- 0.607 - 0.625 in.
- Fastener Height:
- 0.412 - 0.432
- Fastener Width:
- 0.692-0.722
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Cap_Acorn_Nut_Nickel_Plated_18-8_SS.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 4.57 in
- Product Length:
- 3 in
- Product Weight:
- 3.36 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Cap Nut
- Type2:
- Cap Nut
- Series:
- JCN
- Product Details:
- Cap Nut
- Product Material:
- 18-8 Stainless Steel
Metallics JCN165SS – Frequently Asked Questions
1) What thread size does the Metallics JCN165SS cap nut take?
It threads onto 3/8-16 rod or bolt, 16 threads per inch, which is standard UNC coarse for 3/8 inch. If your rod is 3/8-24 fine thread, this nut will not run on.
2) Are these cap nuts stainless, and can I use them outdoors or in a damp mechanical room?
They are 18-8 stainless steel, not plated steel, so corrosion resistance comes from the base material rather than a coating that can be scratched through. That suits damp plant rooms, rooftop work and exposed strut runs. Metallics lists them for electrical, plumbing, heating and air conditioning work.
3) Do Metallics JCN165SS cap nuts meet Buy American or ARRA requirements on a public job?
No. They are not Buy American compliant and not ARRA compliant, and country of origin is listed as multiple. If your project carries domestic sourcing language, these will not satisfy it.
4) Will a 3/8-16 acorn nut clear a tight space over the bolt end?
Check the height before you commit in a tight pocket. The JCN165SS measures 0.412 to 0.432 inch tall, with a 0.692 to 0.722 inch width across and a 0.607 to 0.625 inch head width. That is the total projection above the thread, since a cap nut is closed on top.
5) How are the Metallics JCN165SS cap nuts packaged and what is the minimum order?
They ship in a jar of 100, and 100 is the order minimum, so you buy by the full jar rather than by the piece. The packed jar weighs 3.36 lbs. Metallics does make other sizes and quantities available by request.
6) What is a cap nut actually used for on an electrical or mechanical install?
A cap nut, also called an acorn nut, closes over the end of a threaded rod or bolt so no sharp thread is left exposed. On all-thread hanger drops, strut supports and equipment anchors it keeps the cut end from snagging hands, cable jackets or insulation, and gives a finished look on anything visible in an occupied space.
7) Can I mix stainless cap nuts with galvanized threaded rod?
Mechanically yes, as long as the rod is 3/8-16. Be aware you are pairing 18-8 stainless against a zinc coated rod, which is a dissimilar metal contact; in wet or coastal exposure the zinc will sacrifice first. For a fully stainless run, use stainless rod and hardware throughout.
8) What wrench or socket fits the JCN165SS cap nut?
The across-flats dimension runs 0.607 to 0.625 inch, so a 5/8 inch socket or wrench is the fit. Use a deep socket or a box wrench, since the closed dome means you cannot pass a standard socket over the nut onto the rod.
How fast can I get the Metallics JCN165SS 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 JCN165SS come with a warranty?
Absolutely. The Metallics JCN165SS 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 JCN165SS?
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 JCN165SS 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.