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Nuts 7/8-9 Hx 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 Width:
- 1.269 - 1.312 in.
- Fastener Height:
- 0.724 - 0.776
- Fastener Width:
- 0.724 - 0.776
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 4.47 lbs
- Product Width:
- 3.5 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 9
- Thread Standard:
- ASME B18.2.2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JN
- Product Details:
- Hexagonal Nut
- Product Material:
- Steel
Metallics JN173 – Frequently Asked Questions
1) What thread size is the Metallics JN173 hex nut, and will it fit a 7/8 inch all-thread rod?
The JN173 is a 7/8-9 hex nut, meaning 7/8 inch nominal diameter at 9 threads per inch, which is the standard UNC coarse pitch for 7/8 inch rod. It threads onto 7/8 inch coarse all-thread used for trapeze and strut hanger assemblies. It will not fit a 7/8-14 fine thread rod.
2) What grade are these 7/8 inch hex nuts, and are they strong enough for overhead pipe hangers?
These are Grade 2 steel nuts, hardness Rockwell B68 to C32. Grade 2 is the common commercial grade for general fastening and standard hanger rod work. If your spec calls for a Grade 5 or Grade 8 nut to match a higher grade bolt or rod, this is not the right nut, since nut grade should match the fastener it is torqued against.
3) Is the JN173 nut dimensionally standard, or is it a proprietary Metallics size?
It is built to ASME B18.2.2, the dimensional standard for square and hex nuts, so it interchanges with any other B18.2.2 7/8-9 finished hex nut on the job. Nothing proprietary about the pattern.
4) Are these zinc plated nuts OK for outdoor or damp electrical work?
The JN173 is zinc plated steel. Zinc plating handles dry indoor and protected locations well, and it is what most interior conduit and strut hardware uses. For sustained wet exposure, washdown areas, or corrosive atmospheres, step up to stainless or hot dip galvanized instead, because the plating will eventually give way.
5) How many nuts come in a jar of Metallics JN173, and can I buy fewer?
They ship 25 nuts in a jar, and 25 count is the order minimum, so the jar is the smallest unit. The filled jar weighs 4.47 lbs. Other sizes and quantities are available by request if 7/8-9 in 25 count is not what the job needs.
6) Do Metallics JN173 hex nuts meet Buy American or ARRA requirements on a federal job?
The JN173 is flagged as both ARRA compliant and Buy American compliant in the manufacturer's product data. Country of origin is listed as China, so if your contract enforces a strict domestic melt and manufacture clause rather than the compliance flag, verify against the specific contract language before you submit it.
7) What is the part number to reorder these 7/8 inch hex nuts by the jar?
Order Metallics part JN173, from the JN series of hex nuts: 7/8-9, steel, zinc plated, 25 to a jar. That single MPN covers the whole jar, so one line item is all you need on the requisition.
How fast can I get the Metallics JN173 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 JN173 come with a warranty?
Absolutely. The Metallics JN173 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 JN173?
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 JN173 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.