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Nuts 1/2-13 Hx Nut St-zn (Box 2500)
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:
- 16-Jul in.
- Fastener Head Width:
- 0.736 - 0.750 in.
- Fastener Height:
- 0.427 - 0.448
- Fastener Width:
- 0.840 - 0.866
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 2500
- Order Minimum Uom Imperial:
- TH
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 10.75 in
- Product Length:
- 11.5 in
- Product Weight:
- 75.15 lbs
- Product Width:
- 11.5 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 13
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- N
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Steel
Metallics N166B – Frequently Asked Questions
1) Will the Metallics N166B hex nut thread onto 1/2 inch all-thread rod?
Yes, as long as the rod is 1/2-13 UNC. The N166B is a 1/2-13 hex nut, 13 threads per inch, which is the standard coarse pitch on 1/2 inch threaded rod used for hanging strut, conduit and fixtures. It will not run on 1/2-20 fine thread.
2) How many nuts come in a box of Metallics N166B, and can I buy fewer?
It ships as a box of 2,500 nuts, and 2,500 is the order minimum, so this is a bulk buy rather than a small count pack. Metallics offers other sizes and quantities by request if you need a smaller put-up.
3) Do these Metallics hex nuts meet Buy American requirements on a federal or public job?
The N166B is flagged as both Buy American compliant and ARRA compliant, which is what a government, school district, or federally funded project submittal normally asks for on fasteners. Country of origin is listed as multiple, so if your contract requires a single named country of manufacture on the certification, confirm the lot you receive.
4) What wrench or socket size fits a 1/2-13 Metallics hex nut?
Across the flats the nut measures 0.736 to 0.750 inch, so a 3/4 inch wrench or socket is the right size. Corner-to-corner it runs 0.840 to 0.866 inch, which is what matters if you are turning it inside a tight strut channel or box.
5) How thick is the N166B nut, and how much thread engagement will I get?
Nut height is 0.427 to 0.448 inch. At 13 threads per inch that is roughly 5-1/2 to 5-3/4 turns of engagement, so leave at least a half inch of rod protruding past the nut for full engagement.
6) Will zinc plated nuts hold up outdoors or in a damp mechanical room?
The N166B is steel with a zinc finish, which is fine for dry interior work and damp indoor spaces like mechanical and boiler rooms. Zinc plating is not a marine or chronically wet-location coating, so for exterior exposure or washdown areas go with hot dip galvanized or stainless.
7) How heavy is a 2,500 count box of 1/2-13 hex nuts?
The box weighs 75.15 lbs and measures 11.5 by 11.5 by 10.75 inches. Worth knowing before you plan a one-man carry up a ladder or onto a scissor lift; most crews break it down into buckets on the floor.
How fast can I get the Metallics N166B 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 N166B come with a warranty?
Absolutely. The Metallics N166B 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 N166B?
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 N166B 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.