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Nuts 5/8-18 Hx Jam Nut St-zn (Jar 25)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- 8-Mar in.
- Fastener Head Width:
- 0.922 - 0.938 in.
- Fastener Height:
- 0.535 - 0.559
- Fastener Width:
- 1.051 - 1.083
- Hardness:
- Rockwell B95-C32
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Jam_Nut_Steel_Zinc.pdf
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 1.81 lbs
- Product Width:
- 3 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 18
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Jam Nut
- Type2:
- Hexagonal Jam Nut
- Series:
- JN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Jam Nut
- Product Material:
- Steel
Metallics JN167J – Frequently Asked Questions
1) What thread does the Metallics JN167J jam nut take?
It is a 5/8-18 nut, meaning 5/8 inch nominal diameter at 18 threads per inch. That is the fine thread pitch, so it will not run onto a 5/8-11 coarse-thread rod or bolt. Check the rod you are locking down before ordering; coarse 5/8 rod needs a coarse nut.
2) How thin is a jam nut compared to a standard hex nut, and when do I use one?
The JN167J measures 0.535 to 0.559 inch across its height and 1.051 to 1.083 inch across the flats, so it sits about half the stack height of a full-height hex nut of the same thread. Use it as the second nut to lock a primary nut in place, or where clearance behind a bracket, strut fitting, or enclosure wall will not take a full nut.
3) Does this Metallics jam nut meet Buy American or ARRA requirements on a federal job?
The JN167J is flagged compliant for both ARRA and Buy American in the manufacturer data, while country of origin is listed as China. On a federally funded project, submit those two together to your specifying authority rather than relying on one line alone.
4) Is the JN167J jam nut plated for corrosion resistance?
Steel with a zinc finish. That suits dry indoor electrical work, interior strut and rod hanging, and panel mounting. For wet exterior or coastal exposure, zinc-plated steel is not the right choice; go to hot dip galvanized or stainless at the same 5/8-18 thread.
5) How many nuts come in a jar of Metallics JN167J?
25 nuts per jar, and 25 count is the order minimum, so one jar is the smallest buy. The jar weighs 1.81 lbs.
6) Is this jam nut hard enough to use on threaded rod carrying load?
Hardness runs Rockwell B95 to C32 on the JN167J, which is a hardened steel nut rather than a soft commercial blank. Pair it with rod and a primary nut of matching grade so the nut is not the weak link in the assembly.
7) I need 5/8-18 jam nuts but not in a 25 count jar. Can I get other sizes or pack quantities?
Metallics lists other sizes and quantities in the JN jam nut series by request, so if you need a different thread diameter, pitch, or a bulk pack instead of the 25 count jar, it can be quoted off the same series.
How fast can I get the Metallics JN167J 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 JN167J come with a warranty?
Absolutely. The Metallics JN167J 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 JN167J?
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 JN167J from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.