Nuts M8 Hx Nut SS (Jar 100)
Features
- Made to American Standard Dimensions
- Class A4-70 nuts are intended for use with screws and bolts of similar materials where greater resistance to extreme temperatures and greater resistance to corrosion is desired. The flange design will span oversized or poorly aligned holes. The flange provides a more uniform bearing-stress to clamp-force ratio.
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:
- 12.73 - 13 in.
- Fastener Height:
- 6.14 - 6.5
- Field Application:
- Width is Wrench Size
- Language Code:
- EN
- Material Standard:
- Class A4.70
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Metric_Nut_Steel-Zinc_18-8_SS_316_SS.pdf
- 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:
- 1.11 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Metric Hexagonal Nut
- Type2:
- Metric Hexagonal Nut
- Series:
- JSNM
- Product Details:
- Metric Hexagonal Nut
- Product Material:
- 316 Stainless Steel
Metallics JSNM8SS316 – Frequently Asked Questions
1) Are the Metallics JSNM8SS316 hex nuts real 316 stainless, or just 18-8?
These are 316 stainless steel, built to Class A4-70. That matters where you are fastening in coastal air, wash-down areas, pool rooms, or anywhere chlorides are present: 316 holds up to that corrosion better than 18-8/A2 hardware. A4-70 nuts are meant to be run on screws and bolts of similar material, so pair them with 316 or A4 bolts rather than zinc-plated steel to avoid a galvanic mismatch.
2) What thread size are the JSNM8SS316 nuts, and will they fit a standard M8 bolt?
They are M8 metric hex nuts, so they thread onto standard M8 coarse-thread bolts, studs, and threaded rod. They will not fit imperial 5/16-18 hardware even though the diameters are close, so keep the metric and inch fasteners separate on the job.
3) Do these Metallics stainless nuts qualify for a Buy American or ARRA-funded project?
Metallics lists the JSNM8SS316 as both Buy American compliant and ARRA compliant, which is what a federal, state, or institutional submittal package usually asks for on fastener lines. Country of origin is recorded as multiple, so if your specification requires a single named origin on the certification, ask for the mill paperwork on the lot you receive.
4) What size wrench or socket do I need for these M8 stainless nuts?
Size across the flats is 13, and Metallics notes that the width figure is the wrench size, so a 13 mm wrench or socket is what you want in the pouch. Nut height runs 6.14 to 6.5, so a standard-depth socket clears it fine.
5) How many nuts come in the JSNM8SS316 pack, and how are they packaged?
One hundred nuts in a jar, and 100 count is also the order minimum, so the jar is the smallest buy. Total shipping weight is 1.11 lbs. The jar is handy for a service van or a shop bin since you are not fishing loose nuts out of a bag.
6) Are these hex nuts suitable for electrical work like strut, enclosures, and grounding hardware outdoors?
That is the intended lane. Metallics catalogs the JSNM8SS316 as electrical supply fastener stock, and 316 stainless in M8 is the usual choice for exterior strut runs, NEMA enclosure mounting, and rooftop or marine equipment where plated steel nuts rust and seize. Use 316 bolts or threaded rod with them so the whole joint matches.
7) Are these metric nuts made to metric or American dimensional standards?
The thread is M8 metric, but Metallics states the nuts are made to American Standard dimensions. In practice that means you drive them with a 13 mm wrench and run them on metric bolts; the dimensional callout is just how the part is toleranced.
8) I need a different size or a larger quantity of these stainless metric nuts. Is that available?
The JSNM series runs other sizes and pack quantities beyond the M8 jar of 100, and Metallics lists those as available by request. Give the thread size and the count you need and it can be quoted off the same series.
How fast can I get the Metallics JSNM8SS316 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 JSNM8SS316 come with a warranty?
Absolutely. The Metallics JSNM8SS316 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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