You may also like
Nuts 1/2-13 G5 Hx Nut St-zn (Box 500)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ANSI/ASME B182.2
- 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:
- 5
- Hardness:
- Rockwell C32
- Language Code:
- EN
- Material Standard:
- AISI 1008 - 1026
- Order Minimum Imperial:
- 500
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Box
- Product Group:
- Fasteners
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 13
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- G5N
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Hardened Steel
Metallics G5N166V – Frequently Asked Questions
1) Will the Metallics G5N166V hex nut thread onto a 1/2-13 bolt or threaded rod?
Yes. The G5N166V is a 1/2 inch nut cut at 13 threads per inch, which is standard UNC coarse thread for 1/2 inch fasteners. It runs onto 1/2-13 bolts, all-thread rod, and anchor studs of the same coarse pitch. It will not fit 1/2-20 fine thread.
2) Is a Grade 5 zinc hex nut strong enough to pair with a Grade 5 bolt?
Yes, that is the intended match. The G5N166V is a Grade 5 hardened steel nut at Rockwell C32 hardness, made to carry the proof load of a Grade 5 bolt. Pair it with Grade 8 fasteners only if your spec allows a lower-grade nut; otherwise move up to a Grade 8 nut.
3) Will Metallics G5N166V nuts satisfy a Buy American or ARRA requirement on a federal job?
No. These nuts are not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. On a federally funded project with domestic sourcing language, you need a domestic fastener line instead.
4) What wrench or socket size fits a 1/2-13 Grade 5 Metallics hex nut?
Across the flats the nut measures 0.736 to 0.750 inches, so a 3/4 inch wrench or socket is the right size. Corner to corner it runs 0.840 to 0.866 inches, which is what you need to clear if you are working in a tight channel or strut.
5) How thick is the 1/2-13 Grade 5 nut, and how much thread does it need on the bolt?
Nut height is 0.427 to 0.448 inches, so you want at least that much usable thread past the joint plus a thread or two showing for full engagement. On short bolts or rod cut flush, check your stickout before you order.
6) Can zinc-plated Grade 5 nuts be used outdoors or in a damp mechanical room?
Zinc plating over steel handles indoor and sheltered conditions, damp mechanical rooms, and short-term weather exposure. For sustained outdoor, coastal, or wet-location work, specify hot dip galvanized or stainless instead; the zinc coating on the G5N166V is a plating, not a galvanized barrier.
7) Does this nut meet a dimensional spec I can put on a submittal?
It is manufactured to ANSI/ASME B182.2 for dimensions, with steel to AISI 1008 - 1026 material standard. Those two lines are what a mechanical or electrical submittal usually asks for on a finished hex nut.
8) How many 1/2-13 Grade 5 hex nuts come in a box, and can I buy fewer?
They ship as a box of 500 each, and 500 is the order minimum. Smaller counts are not broken out, though Metallics does offer other sizes and quantities on request.
9) Are these the right nuts for hanging strut, trapeze, and conduit rod in an electrical rough-in?
That is the use they are catalogued for. A 1/2-13 Grade 5 zinc hex nut is the standard nut for 1/2 inch threaded hanger rod on trapeze supports, strut, and equipment anchoring, and the box of 500 covers a full rough-in rather than a single opening. For 3/8-16 rod, which is the other common hanger size, you need a different nut from the G5N series.
How fast can I get the Metallics G5N166V 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 G5N166V come with a warranty?
Absolutely. The Metallics G5N166V 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 G5N166V?
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 G5N166V 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.