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Nuts 3/4-10 Hvy Hx Nut Pln-St (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:
- 47/64 in.
- Fastener Head Width:
- 1.212 - 1.250 in.
- Fastener Height:
- 0.710 - 0.758
- Fastener Width:
- 1.382 - 1.443
- 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:
- 4.59 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:
- Plain
- Product Details:
- Heavy Hexagon Nut
- Product Material:
- Steel
Metallics JHHN34PL – Frequently Asked Questions
1) Will the Metallics JHHN34PL heavy hex nut thread onto a 3/4 inch all-thread rod?
It threads 3/4-10, which is the standard UNC coarse thread for 3/4 inch rod and bolts, so it runs onto 3/4 inch coarse all-thread used for strut, trapeze, and conduit hanger assemblies. It will not fit 3/4-16 fine thread rod. Thread count is 10 per inch.
2) Is this a heavy hex nut or a standard hex nut, and does the difference matter?
The JHHN34PL is a heavy hexagon nut. Heavy pattern means a wider flat and a taller body than a standard hex nut of the same thread, so it spreads load over more bearing area and takes more wrench torque. Height is 0.710 to 0.758 inches. If your drawing calls for a standard hex nut, the heavy one may not clear the counterbore or the adjacent flange.
3) Is this nut plated or bare steel, and can I use it outdoors?
Plain finish carbon steel, no plating or galvanizing. Bare steel will rust in wet or exterior locations, so keep these to dry interior work or plan on field coating. For outdoor or damp mechanical rooms, specify a hot dip galvanized or zinc plated 3/4-10 heavy hex nut instead.
4) What grade and hardness are these 3/4-10 heavy hex nuts?
Grade 2 steel, with hardness in the Rockwell B68 to C32 range. Grade 2 is a general purpose low carbon strength class, so it suits standard electrical hanging and support work. If your spec calls for Grade 5 or Grade 8 nuts to match high strength bolting, these are not a match.
5) What is the across-flats wrench size for a 3/4-10 heavy hex nut like the JHHN34PL?
Across the flats it measures 1.212 to 1.250 inches, so a 1-1/4 inch wrench or socket is the size to bring. Corner to corner it runs 1.382 to 1.443 inches, which matters if you are working inside a strut channel or tight against a beam flange.
6) How many nuts come in a jar, and can I buy fewer than 25?
They ship in a jar of 25, and 25 count is the order minimum, so a jar is the smallest unit. Other sizes and quantities are available by request.
7) Do these Metallics heavy hex nuts meet Buy American and ARRA requirements on a public job?
The JHHN34PL is flagged ARRA compliant and Buy American compliant. Country of origin is China. Federally funded work often requires the compliance flag and the origin documented together, so put both on your submittal.
8) What does a jar of 25 of these 3/4-10 heavy hex nuts weigh for shipping or carrying up a lift?
The packed jar runs 4.59 lbs and measures 5.75 inches by 3.5 by 3.5. Easy enough to drop in a tool bag, but if you are stocking a van with several sizes the weight adds up fast.
How fast can I get the Metallics JHHN34PL 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 JHHN34PL come with a warranty?
Absolutely. The Metallics JHHN34PL 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 JHHN34PL?
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installation tips, and troubleshooting. Contact Us
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