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Nuts 3/8-16 Spring Nut St-zn (Box 100)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Height:
- 0.353 - 0.370
- Fastener Length:
- 1.316 - 1.380
- Fastener Width:
- 0.725 - 0.770
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Hardness:
- Rockwell HR15N 78-90
- Language Code:
- EN
- Material Standard:
- C1015 - C1020
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Sprg_Nut_St-Zn.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 3.25 in
- Product Length:
- 7.25 in
- Product Weight:
- 8.34 lbs
- Product Width:
- 6.75 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Thread Standard:
- ANSI/ASME B1.1
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Spring Nut
- Type2:
- Spring Nut
- Series:
- MSNR
- Product Finish:
- Zinc
- Product Details:
- Spring Nut
- Product Material:
- Steel
Metallics MSNR3816 – Frequently Asked Questions
1) What thread size is the Metallics MSNR3816 spring nut, and will a standard 3/8 inch rod thread into it?
The MSNR3816 is a 3/8-16 spring nut, so 16 threads per inch on a 3/8 inch diameter, cut to ANSI/ASME B1.1. Any 3/8-16 threaded rod, bolt, or hanger rod made to that standard will thread straight in. Note that 3/8-16 is not the UNC 3/8-16 you may be used to seeing called 3/8-16 on all-thread; confirm the rod you have on the job is 16 TPI before ordering.
2) Do Metallics MSNR3816 spring nuts meet Buy American or ARRA requirements on a federal job?
No. The MSNR3816 spring nut is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic sourcing clause, this part will not satisfy it.
3) How many spring nuts come in a box of Metallics MSNR3816, and can I buy fewer?
They ship as a box of 100 and the order minimum is 100 count, so the box is the smallest unit. Other sizes and quantities are available by request.
4) Are Metallics MSNR3816 spring nuts OK for damp indoor mechanical rooms, or do I need stainless?
These are steel with a zinc finish, made from C1015 to C1020 carbon steel. Zinc plating handles normal dry and intermittently damp interior work, which is where they are used for electrical, plumbing, and heating and air conditioning hanging. For sustained wet exposure, exterior runs, coastal sites, or corrosive process areas, specify a stainless or hot-dip galvanized channel nut instead.
5) Does the MSNR3816 channel nut include the spring, or do I order that separately?
It is a one-piece spring nut, so the spring is part of the fastener. The spring holds the nut up against the channel lips while you line up the rod or bolt, which lets you set it one-handed overhead. You still supply your own 3/8-16 rod or bolt, washers, and any channel.
6) How hard is the MSNR3816 spring nut, and will the teeth bite into channel without stripping?
Case hardness is Rockwell HR15N 78 to 90. That surface hardness is what lets the serrated face grip the inside of the channel lips under load rather than deform, while the C1015 to C1020 core keeps enough ductility that the nut body does not crack when torqued.
7) What does a full box of Metallics MSNR3816 spring nuts weigh for shipping or carrying up a lift?
A box of 100 runs 8.34 lbs, and the carton measures 7.25 by 6.75 by 3.25 inches. Easy enough for one tech to carry a box per floor on a rough-in.
How fast can I get the Metallics MSNR3816 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 MSNR3816 come with a warranty?
Absolutely. The Metallics MSNR3816 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 MSNR3816?
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 MSNR3816 from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.