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Nuts 3/8-24 G8 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
- Dimensional Standard:
- ANSI/ASME B182.2
- Division:
- Electrical H1
- Fastener Head Height:
- 21/64 in.
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.320 - 0.337
- Fastener Width:
- 0.628 - 0.650
- Grade:
- 8
- Hardness:
- Rockwell C24-32
- Language Code:
- EN
- Material Standard:
- AISI 1021 - 1045
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 0.78 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 24
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JG8N
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Hardened Steel
Metallics JG8N1651 – Frequently Asked Questions
1) Will a Metallics JG8N1651 hex nut fit a 3/8-24 fine thread bolt?
Yes. The JG8N1651 is a 3/8-24 hex nut, so it threads onto 3/8 inch fine-thread (24 threads per inch) bolts and rod. It will not run onto 3/8-16 coarse thread, which is the other common 3/8 pitch, so check the bolt pitch before ordering.
2) Is a Grade 8 nut strong enough to use with Grade 8 bolts on equipment and hanger work?
The JG8N1651 is a Grade 8 hardened steel nut with a hardness of Rockwell C24-32, which is the matching nut grade for Grade 8 bolting. Pairing a lower grade nut with a Grade 8 bolt is what strips threads under load, so for high strength assemblies this is the nut to use.
3) What wrench or socket size do I need for these Metallics Grade 8 3/8-24 nuts?
Across the flats the nut measures 0.551 to 0.562 inches, which is a 9/16 inch wrench or socket. Corner to corner it runs 0.628 to 0.650 inches, so allow that clearance in tight channel or strut work.
4) Are these zinc plated nuts okay for outdoor or damp locations?
The finish is zinc plating on hardened steel, which handles indoor, dry, and mildly damp conditions. For direct weather exposure, continuous wet locations, or coastal installs, zinc plating will eventually corrode and a hot dip galvanized or stainless fastener is the better call.
5) Do these Metallics 3/8-24 nuts meet a dimensional spec I can put on a submittal?
They are built to ANSI/ASME B182.2 for dimensions, with material per AISI 1021-1045. Those two lines plus the Grade 8 designation are usually what a spec reviewer wants to see on a fastener submittal.
6) Are Metallics JG8N1651 nuts Buy American and ARRA compliant for a public project?
Both the ARRA and Buy American fields on the JG8N1651 are flagged compliant. Country of origin is listed as China, so if your project requires domestic melt and manufacture rather than ARRA-style compliance, verify that distinction against your contract language.
7) How thick is a 3/8-24 Grade 8 hex nut, and will it clear a short bolt stickout?
Nut thickness is 21/64 inch, so you need at least that much usable thread beyond the joint plus a thread or two past the nut for full engagement. On short stickouts in strut or panel work, measure before you commit to this nut rather than a thin jam nut.
8) How many nuts come in a jar and can I order a smaller count?
They ship 50 count in a jar, and 50 is the order minimum, so that jar is the smallest buy. Metallics does offer other sizes and quantities on request if you need a different pitch, diameter, or pack count for a larger job.
9) What does a jar of 50 Metallics 3/8-24 hex nuts weigh for shipping or a truck stock list?
A jar of 50 comes in at 0.78 lbs, so it is easy to keep several sizes on the van without adding real weight to a parts bin.
How fast can I get the Metallics JG8N1651 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 JG8N1651 come with a warranty?
Absolutely. The Metallics JG8N1651 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 JG8N1651?
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
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Our team is always ready to help you choose the right product for your project.