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Nuts 3/4-10 Hvy Hx Nut St-zn (Jar 29)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Fastener Head Height:
- 47/64 in.
- Fastener Head Width:
- 1.212 - 1.250 in.
- Fastener Height:
- 0.710 - 0.758
- Fastener Width:
- 1.382 - 1.443
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Heavy_Hex_Nut_Gr_2_and_18-8_SS.pdf
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 4.73 lbs
- Product Width:
- 3.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 10
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Heavy Hexagon Nut
- Type2:
- Heavy Hexagon Nut
- Series:
- JHHN
- Product Finish:
- Zinc
- Product Details:
- Heavy Hexagon Nut
- Product Material:
- Steel
Metallics JHHN34 – Frequently Asked Questions
1) What thread does the Metallics JHHN34 heavy hex nut take, and will it run on 3/4 inch all-thread rod?
It's a 3/4-10 nut, 10 threads per inch, which is standard coarse 3/4 inch UNC. It threads onto 3/4-10 rod, anchor bolts, or hex bolts of the same pitch. It will not run on 3/4-16 fine thread.
2) Is a Grade 2 zinc heavy hex nut strong enough for overhead conduit and pipe hangers?
The JHHN34 is a Grade 2 steel nut with a zinc finish, hardness Rockwell B68 to C32, and it's sold for electrical, plumbing, heating and air conditioning work, which is exactly the hanger, strut and trapeze duty most 3/4-10 rod sees. If your drawing calls out a Grade 5 or Grade 8 nut for a structural or high-tension connection, Grade 2 is not a substitute.
3) Does the Metallics JHHN34 nut meet Buy American or ARRA requirements for a public job?
No. The JHHN34 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project has domestic-sourcing language in the specification, this nut will not satisfy it.
4) What wrench or socket size does this 3/4-10 heavy hex nut need?
Across the flats it measures 1.212 to 1.250 inches, so a 1-1/4 inch wrench or socket fits. Corner to corner it runs 1.382 to 1.443 inches, which is what you need clearance for in a tight channel or strut run.
5) How thick is the Metallics JHHN34 nut, and how much rod engagement do I need?
Nut height is 47/64 in. (roughly 0.710 to 0.758 in. measured), so plan on at least that much rod projecting past the connection plus a thread or two showing for a full-engagement inspection.
6) Can I use these zinc nuts outdoors or in a wet mechanical room?
Zinc plating over steel gives moderate corrosion protection, fine for interior mechanical rooms and dry service. For sustained wet, washdown, coastal or chemical exposure, specify an 18-8 stainless or hot dip galvanized heavy hex nut instead, since zinc plate will eventually sacrifice and rust-bloom.
7) How does the JHHN34 ship and what is the minimum I can order?
It ships in a jar, with a stated jar weight of 4.73 lbs, and the order minimum is 25 each. Jar packaging is practical for a van stock or a shop bin rather than loose bagged counts.
8) I need a different size or a larger count of Metallics heavy hex nuts. Is that possible?
Yes. Beyond the 3/4-10 JHHN34, other sizes and quantities in the Metallics JHHN heavy hex nut series are available by request.
How fast can I get the Metallics JHHN34 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 JHHN34 come with a warranty?
Absolutely. The Metallics JHHN34 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 JHHN34?
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 JHHN34 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.