You may also like
Nuts 3-48 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
- 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:
- 0.21 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 48
- 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 JN151 – Frequently Asked Questions
1) What screw size does the Metallics JN151 hex nut thread onto?
The JN151 is a 3-48 hex nut, so it mates with a #3 machine screw cut at 48 threads per inch. That is the fine-thread #3 size, not the coarse 3-56, so a screw and nut mix-up will cross-thread. Threads are made to ASME B18.2.2.
2) Are these small hex nuts plated for use in damp electrical enclosures?
The JN151 nuts are steel with a zinc finish, which gives basic corrosion resistance for indoor panels, boxes, and dry or lightly damp locations. For wet, outdoor, or corrosive service a stainless nut is the better call, since zinc plating on steel will eventually give up in standing moisture.
3) How strong are the Metallics JN151 nuts, and are they suitable for structural work?
Grade 2 steel, hardness Rockwell B68-C32. That is general-purpose fastener strength, fine for device mounting, cover plates, terminal and panel work at #3 screw size. It is not a structural grade, so for load-bearing or high-torque joints step up to a Grade 5 or Grade 8 nut in a larger thread size.
4) How are the Metallics JN151 3-48 nuts packaged, and what is the minimum I can order?
They come in a jar of 100, and 100 count is the order minimum. Jar packaging keeps a #3 nut from getting lost in a bag, which matters when the parts are this small on a service cart or in a toolbox.
5) Do these Metallics nuts meet Buy American and ARRA requirements for a public project?
Metallics lists the JN151 as both Buy American compliant and ARRA compliant. Country of origin is China. If your specification demands domestic melt and manufacture rather than the compliance flag, confirm against the exact clause in your contract before submitting.
6) I need a different size than 3-48 in this Metallics JN nut line. Can I get one?
Yes. The JN series covers other thread sizes and pack quantities beyond the 3-48 jar of 100, available by request. Tell us the thread size and the count you need and we will pull the matching JN number.
7) What does a jar of Metallics JN151 nuts weigh for shipping?
Listed weight is 0.21 lbs for the jar, with jar dimensions given as 3 x 2.15 x 3 inches. Light enough to add to any order without affecting freight.
How fast can I get the Metallics JN151 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 JN151 come with a warranty?
Absolutely. The Metallics JN151 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 JN151?
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 JN151 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.