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Nuts 1/2-13 Short Spring Nut St-zn (Box 100)
Additional Notes
- Other sizes and quantities available by request, *indicates short spring
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:
- 7.35 lbs
- Product Width:
- 6.75 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 13
- Thread Standard:
- ANSI/ASME B1.1
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Spring Nut
- Type2:
- Spring Nut
- Series:
- MSNS
- Product Finish:
- Zinc
- Product Details:
- Spring Nut
- Product Material:
- Steel
Metallics MSNS1213 – Frequently Asked Questions
1) Will the Metallics MSNS1213 spring nut take a 1/2-13 threaded rod or bolt?
Yes. The MSNS1213 is tapped 1/2-13, meaning a 1/2 inch diameter thread at 13 threads per inch, cut to ANSI/ASME B1.1. That is the standard UNC coarse pitch for 1/2 inch rod, so standard 1/2-13 all-thread rod, hanger rod, or bolts thread straight in.
2) What does the "short spring" mean on the MSNS1213 spring nut, and when would I use it instead of a long spring?
The spring is the formed leaf on the back of the nut that compresses as you drop it into a strut channel, then pushes the nut body up against the channel lips so it holds position before you run the rod in. A short spring is sized for shallower channel, typically 1-5/8 x 13/16 inch (half height) strut; a long spring version is made to reach across the full 1-5/8 x 1-5/8 inch depth. Pick the spring length to match the channel depth you are mounting into, not the rod size.
3) Does the MSNS1213 spring nut meet Buy American or ARRA requirements for a federal job?
No. The MSNS1213 spring nut is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your project carries domestic sourcing requirements, this part will not satisfy them.
4) Is a zinc plated steel spring nut okay for outdoor or wet locations?
The MSNS1213 is carbon steel with a zinc finish. Zinc plating handles dry interior and normally sheltered service well, but it is a sacrificial coating, not stainless. For exterior exposure, wash-down areas, coastal sites, or anything corrosive, specify a stainless or hot dip galvanized channel nut instead.
5) How many spring nuts come in a box of Metallics MSNS1213, and can I buy fewer?
MSNS1213 ships as a box of 100 pieces, and 100 count is the order minimum, so the box is the smallest unit. The full box weighs 7.35 lbs and the carton measures 7.25 x 6.75 x 3.25 inches.
6) Is this spring nut strong enough to hang conduit and pipe, or is it just for light trim work?
It is a structural channel fastener. The MSNS1213 is made from C1015 to C1020 low carbon steel and case hardened to Rockwell HR15N 78-90, which is why the threads hold up to rod loads rather than stripping. Metallics lists it for electrical, plumbing, and heating and air conditioning work, which covers conduit racks, strut-mounted pipe hangers, and equipment supports.
7) Do I need a spring nut or will a plain channel nut do the job?
Both thread the same into strut, but the spring is about installation, not strength. A plain channel nut has to be held in place while you start the rod, which is awkward overhead or in a trench. The MSNS1213 spring nut stays put on its own once seated, so you can work one-handed. For ground-level work where you can hold the nut, a plain channel nut is the simpler buy.
8) Are other thread sizes available in the Metallics MSNS spring nut series?
Yes. MSNS1213 is the 1/2-13 short spring version, and Metallics makes the MSNS series in other sizes and pack quantities on request. If you are standardizing a building on one strut system, you can run the same series across 1/4-20 through 1/2-13 rod sizes rather than mixing brands.
How fast can I get the Metallics MSNS1213 delivered?
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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 MSNS1213 come with a warranty?
Absolutely. The Metallics MSNS1213 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 MSNS1213?
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