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Nuts 1/4-20 Hvy Hx Nut St-zn (Jar 100)
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:
- 15/64 in.
- Fastener Head Width:
- 0.488 - 0.500 in.
- Fastener Height:
- 0.218 - 0.250
- Fastener Width:
- 0.556 - 0.577
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 1.13 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 20
- 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 JHHN14 – Frequently Asked Questions
1) What thread size does the Metallics JHHN14 hex nut take?
It's a 1/4-20 nut, so 20 threads per inch on a 1/4 inch coarse (UNC) bolt or threaded rod. Any standard 1/4-20 all-thread, strut hardware bolt, or machine screw of that size will run into it.
2) What wrench or socket size fits this 1/4-20 nut?
Across the flats the nut measures 0.488 to 0.500 in., so a 1/2 inch wrench or socket is the one to grab. Across the corners it runs 0.556 to 0.577 in., which matters if you're working in a tight channel or box knockout.
3) What grade are these Metallics hex nuts, and is that strong enough for strut and conduit hanging?
Grade 2, with a hardness of Rockwell B68 to C32. That's the standard commercial grade used with Grade 2 bolts and threaded rod for conduit supports, strut, and general electrical mounting. If your drawing calls out Grade 5 or Grade 8 hardware on a structural connection, match the nut to the bolt grade instead of using these.
4) How many nuts come in a jar of Metallics JHHN14?
They ship 100 to a jar, and 100 count is also the order minimum. Good quantity for restocking a van or a shop bin rather than buying loose.
5) How thick is the Metallics JHHN14 nut?
Nut height runs 0.218 to 0.250 in., listed at 15/64 in. nominal. Worth checking against your bolt stickout: you want full thread engagement through that height, so a short bolt that only catches a couple of threads needs to be swapped up a length.
6) Is this nut okay for outdoor or damp electrical work?
The JHHN14 is steel with a zinc finish, which handles general indoor and sheltered outdoor use. For continuous wet locations, coastal exposure, or anywhere you're already running stainless strut and hardware, go stainless instead rather than mixing metals.
7) Will the JHHN14 heavy hex nut work on a job with Buy American requirements?
It is flagged Buy American compliant and ARRA compliant in the product record, with country of origin China. On federally funded work, hand those two compliance flags plus the origin to your specifying authority and let them confirm against the specific clause in your contract.
8) What is the difference between a heavy hex nut and a standard hex nut in this size?
A heavy hex nut is wider across the flats and thicker than a finished hex nut of the same thread, so it spreads load over more bearing surface and gives more thread engagement. On the JHHN14 that works out to 0.488 to 0.500 in. across the flats on a 1/4-20 thread. If you're torquing into slotted strut or against a thin sheet metal enclosure, the extra bearing area is the reason to pick it; if clearance in a tight box is the constraint, a standard hex is the smaller footprint.
9) How much does a jar of 100 of these nuts weigh for shipping?
The packed jar is listed at 1.13 lbs, in a container measuring 3 in by 3 in by 2.15 in. Easy to stock several sizes in one drawer or gang box.
How fast can I get the Metallics JHHN14 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 JHHN14 come with a warranty?
Absolutely. The Metallics JHHN14 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 JHHN14?
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installation tips, and troubleshooting. Contact Us
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