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Nuts 1/4-20 Hx Nut Blk-Ox (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.2.2
- Division:
- Electrical H1
- Fastener Head Width:
- 0.423 - 0.438 in.
- Fastener Height:
- 0.212 - 0.226
- Fastener Width:
- 0.488 - 0.505
- Field Application:
- Electrical, Plumbing, Heating, Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- ASTM A563
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nut_Black_Ox.pdf
- 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:
- 0.75 lbs
- Product Width:
- 3 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 20
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JN
- Product Finish:
- Black Oxide
- Product Details:
- Hexagonal Nut
- Product Color:
- Black
- Product Material:
- Steel
Metallics JN163BLACK – Frequently Asked Questions
1) Will the Metallics JN163BLACK hex nut thread onto 1/4-20 all-thread rod?
Yes. The JN163BLACK is a 1/4-20 UNC nut, 20 threads per inch, cut to ANSI/ASME B1.1. That is the same coarse thread used on standard 1/4-20 threaded rod, so it runs on rod, hanger studs, and 1/4-20 bolts without an adapter.
2) Will these nuts match a dimensional spec calling for ASME B18.2.2 hex nuts?
Yes. The JN163BLACK is built to ASME B18.2.2 for dimensions and ASTM A563 for nut material and mechanical property grade, so it drops into a submittal that calls out either standard for a 1/4-20 hex nut.
3) Do these hex nuts qualify for a Buy American or ARRA job?
Metallics lists the JN163BLACK as both ARRA compliant and Buy American compliant. Country of origin on the nut is China, so on a project where the specifier is reading domestic-melt language rather than the compliance flag, verify against the actual contract clause before you submit.
4) What wrench or socket size fits this 1/4-20 black oxide hex nut?
Across the flats the nut measures 0.423 to 0.438 in., which is the 7/16 inch wrench or socket size. Corner to corner it runs 0.488 to 0.505 in., and it stands 0.212 to 0.226 in. thick, so figure 7/16 for both open-end and socket work.
5) Does the black oxide finish on these hex nuts hold up outdoors?
Black oxide is a conversion coating on steel, not a sacrificial zinc plating, so it offers minimal corrosion protection on its own. These Metallics JN nuts suit dry interior work such as electrical, plumbing, heating, and air conditioning installs where the black color matters for appearance. For wet, exterior, or damp-location jobs, go with a hot-dip galvanized or stainless 1/4-20 nut instead.
6) How many nuts come in a jar and can I buy less than a full jar?
These ship as a jar of 100. The order minimum is 100 count, so the jar is the smallest unit sold. Metallics notes other sizes and quantities are available by request.
7) Is the JN163BLACK a plain hex nut or a locking nut?
Plain finished hex nut, steel, black oxide, with no nylon insert and no distorted thread. It will back off under vibration on its own, so where you need retention use a jam nut behind it, a lock washer, or a thread locker.
8) What does a jar of 100 of these 1/4-20 nuts weigh for shipping?
The packed jar runs 0.75 lbs, and the container itself is about 3 in by 3 in by 2.15 in. Light enough that most MRO buyers stock several jars on the truck or in the shop bin without a weight concern.
How fast can I get the Metallics JN163BLACK 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 JN163BLACK come with a warranty?
Absolutely. The Metallics JN163BLACK 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 JN163BLACK?
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 JN163BLACK 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.