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Nuts 5-40 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 Width:
- 0.302 - 0.312 in.
- Fastener Height:
- 0.102 - 0.114
- Fastener Width:
- 0.102 - 0.114
- 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:
- 0.26 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 40
- Thread Standard:
- ASME B18.2.2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JN
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Steel
Metallics JN158 – Frequently Asked Questions
1) What screw size does the Metallics JN158 hex nut thread onto?
The JN158 is a 5-40 hex nut, so it mates with #5 machine screws cut to 40 threads per inch. Threads follow ASME B18.2.2. If your screw is #6-32 or #4-40, this is the wrong nut.
2) Do Metallics JN158 nuts meet Buy American or ARRA requirements on a public project?
The JN158 is flagged compliant for both ARRA and Buy American, while country of origin is listed as China. Those two facts sit side by side in the manufacturer's data, so if your project office is enforcing a domestic-content clause, submit it on the compliance flags and the origin together rather than on one alone.
3) Are these zinc plated steel nuts okay for damp or outdoor electrical work?
Zinc plated steel gives moderate corrosion resistance, which suits dry indoor panel, enclosure, and device work. For wet locations, direct weather exposure, or corrosive atmospheres, step up to a stainless 5-40 nut instead; zinc plating will eventually white rust and bleed.
4) How many nuts come in a jar of Metallics JN158, and can I buy fewer?
Each jar holds 100 nuts, and 100 count is the order minimum, so the jar is the smallest unit sold. Jar packaging keeps small #5 hardware from scattering in a van drawer or on a service cart. Other sizes and quantities are available by request.
5) How much does a jar of 100 of these 5-40 hex nuts weigh for shipping or a van stock list?
A jar of 100 weighs 0.26 lbs. The jar itself is 3 inches wide by 3 inches in length and 2.15 inches high, so it drops into a small parts bin or tool bag pocket without taking a shelf.
6) Is the JN158 a full-height nut or a thin jam nut?
At 0.102 to 0.114 inch high against 0.302 to 0.312 inch across the flats, the 5-40 JN158 is a low profile nut. Keep that in mind where a clamping joint needs full thread engagement, and where you are stacking two nuts to lock a stud.
How fast can I get the Metallics JN158 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 JN158 come with a warranty?
Absolutely. The Metallics JN158 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 JN158?
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 JN158 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.