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Nuts 1/2-13 Hx Nut Blk-Ox (Jar 50)
Manufacturer Resources
Product Specs
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Department:
- Electrical
- Product Subgroup:
- Nuts
Metallics JN166BLACK – Frequently Asked Questions
1) What thread size are the Metallics JN166BLACK hex nuts?
They're 1/2-13 hex nuts, meaning a 1/2 inch nominal diameter with 13 threads per inch, which is the standard UNC coarse thread for that diameter. They'll run onto any 1/2-13 UNC threaded rod, bolt, or anchor stud.
2) Will a 1/2-13 black oxide hex nut work on 1/2 inch threaded rod for hanging strut and conduit?
Yes. Standard 1/2 inch all-thread rod used for trapeze hangers and strut is 1/2-13 UNC, so the JN166BLACK threads straight on. Black oxide keeps the hardware dark where the hanger is visible, such as in open-ceiling retail or office fit-outs.
3) How many nuts come in a jar of Metallics JN166BLACK?
50 nuts per jar. Metallics ships this one as a jar pack rather than loose count or a bulk box, so it's sized for a service van or a shop shelf rather than a full production run.
4) What is the black oxide finish on these 1/2-13 nuts for, and can I use them outdoors?
Black oxide is a conversion coating, not a plating. It gives a dark non-reflective finish and mild corrosion resistance when oiled, which is why it's commonly specified on exposed electrical support hardware where a bright zinc nut would stand out. It is not a weathering finish. For wet, outdoor, or corrosive locations, use a hot-dip galvanized or stainless 1/2-13 nut instead.
5) Is the JN166BLACK a plain hex nut or a locking nut?
It's a plain hex nut, no nylon insert and no distorted locking thread. On anything subject to vibration, pair it with a lock washer, use a second nut as a jam nut, or order a nylon insert lock nut in 1/2-13 instead.
6) What wrench or socket size do I need for these 1/2-13 hex nuts?
A finished 1/2-13 hex nut takes a 3/4 inch wrench or socket across the flats. That is the standard dimension for the size, so a 3/4 inch socket on an impact or a standard combination wrench handles them.
7) Is the Metallics part number for the 1/2-13 black oxide hex nut jar JN166BLACK?
Yes, JN166BLACK is the Metallics manufacturer part number for the 1/2-13 hex nut in black oxide, packed 50 to a jar. Order against that number to get the black oxide version rather than a plated equivalent.
How fast can I get the Metallics JN166BLACK 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 JN166BLACK come with a warranty?
Absolutely. The Metallics JN166BLACK 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 JN166BLACK?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JN166BLACK from ZenSupply?
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