You may also like
Nuts 5/8-18 Hx Nut St-zn (Jar 50)
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:
- 0.922 - 0.938 in.
- Fastener Height:
- 0.535 - 0.559
- Fastener Width:
- 0.535 - 0.559
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 3.6 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:
- 18
- Thread Standard:
- ASME B18.2.2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Steel
Metallics JN179 – Frequently Asked Questions
1) Is the Metallics JN179 hex nut a fine thread or coarse thread 5/8 nut?
It's fine thread. The JN179 is a 5/8-18 hex nut, 18 threads per inch, so it mates with 5/8-18 UNF bolts and rod. Standard coarse 5/8 hardware is 5/8-11, and those two will not thread together, so check the bolt you're matching before you order.
2) What grade are these Metallics 5/8-18 hex nuts, and are they strong enough for structural work?
They're Grade 2 steel nuts, hardness Rockwell B68 to C32, made to ASME B18.2.2 dimensional standard. Grade 2 is a general purpose nut, correct for electrical supports, strut, hangers and light mechanical assembly. If your drawing calls for a Grade 5 or Grade 8 nut to match a high strength bolt, this is not the right nut.
3) What wrench or socket size fits the JN179 5/8-18 hex nut?
Across the flats the nut measures 0.922 to 0.938 inch, which is a 15/16 inch wrench or socket. Height across the nut runs 0.535 to 0.559 inch.
4) Will a 5/8-18 steel zinc hex nut hold up outdoors?
Zinc plated steel is a mild corrosion coating, fine for dry interior work, damp indoor areas, and short-term or sheltered exterior use. For permanent outdoor exposure, washdown, or coastal conditions, zinc will eventually bloom and rust; hot dip galvanized or stainless is the better call there.
5) How many nuts come in a jar of Metallics JN179, and can I buy less than a full jar?
The JN179 ships as a jar of 50 nuts, and 50 count is the order minimum, so the jar is the smallest buying unit. The packed jar weighs 3.6 lbs.
6) Do these 5/8-18 hex nuts meet Buy American or ARRA requirements on a federal job?
The JN179 is flagged compliant for both ARRA and Buy American in the manufacturer data, with country of origin listed as China. On a federally funded project, procurement will want the manufacturer's own certification letter against the specific clause in your contract.
7) Can I get the same 5/8-18 hex nut in a different quantity or a different thread size?
Yes. The Metallics JN series covers other sizes and pack quantities beyond the 50 count jar of 5/8-18, available by request.
How fast can I get the Metallics JN179 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 JN179 come with a warranty?
Absolutely. The Metallics JN179 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 JN179?
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 JN179 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.