You may also like
Nuts M12 Hx Nut SS (Jar 100)
Additional Notes
- Other sizes and quantities available by request
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.
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Width:
- 18.67 - 19 in.
- Fastener Height:
- 9.64 - 10
- 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:
- 4.57 in
- Product Length:
- 3 in
- Product Weight:
- 3.51 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 JSNM12SS316 – Frequently Asked Questions
1) What thread size and material is the Metallics JSNM12SS316 hex nut?
It's an M12 metric hex nut in 316 stainless steel, supplied as a jar of 100. Being 316 rather than 18-8 matters where the fastener sees chlorides or washdown: coastal exteriors, rooftop strut and conduit supports, pool and water-treatment rooms, food plants. Mate it with M12 x 1.75 coarse-thread bolts or studs in a like stainless so you aren't mixing dissimilar metals.
2) Are these American standard dimensions or metric thread?
The thread is metric, M12, while the nut is made to American Standard Dimensions. So it will not thread onto a 1/2 inch UNC bolt even though the two are close in diameter. If your bolts are inch-series, you need an inch hex nut instead.
3) What wrench size do I need for an M12 stainless hex nut?
The nut's width across flats is given as 18.67 to 19, and the spec data states plainly that the width is the wrench size, so a 19 mm wrench or socket drives it. Nut height runs 9.64 to 10. Stainless galls easily, so run it slow with a wrench rather than an impact, and use anti-seize on stainless-to-stainless threads.
4) What does Class A4-70 mean on a stainless hex nut?
A4-70 is the stainless property class marked on this M12 nut. A4 is the molybdenum-bearing stainless group (316), chosen when you want more corrosion resistance and better behavior at extreme temperatures than standard 18-8 gives. The 70 is the strength level. Pair A4-70 nuts with bolts and screws of similar class and material so the assembly holds together as a system.
5) How many M12 nuts come in a jar, and is there an order minimum?
They ship in a jar of 100 pieces, and 100 count is the order minimum, so a jar is the smallest buy. For MRO cribs and electrical stock rooms that's one jar per bin location. Other sizes and quantities can be had by request.
6) Is this M12 stainless nut acceptable on a Buy American or ARRA-funded job?
The Metallics JSNM12SS316 is listed as both Buy American compliant and ARRA compliant in its product data. Country of origin is recorded as multiple, so if your specification requires a single documented origin per lot, have that confirmed against the lot you receive.
7) Can I use these 316 stainless nuts outdoors on strut, conduit clamps and equipment anchors?
Yes, that's the usual home for them. 316 stainless with an A4-70 class is specified where corrosion resistance beyond plain or zinc-plated steel is wanted, which covers rooftop unistrut runs, exterior conduit supports, marine and coastal equipment pads, and chemical or wet process areas. The one caution is galvanic pairing: don't run these against galvanized or plain steel hardware in a wet location.
8) How much does a jar of 100 M12 316 stainless nuts weigh for shipping?
A jar runs 3.51 lbs. The jar itself is listed at 3 in by 3 in with a 4.57 in height, which is useful if you're planning bin or drawer space in a stock room.
How fast can I get the Metallics JSNM12SS316 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 JSNM12SS316 come with a warranty?
Absolutely. The Metallics JSNM12SS316 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 JSNM12SS316?
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 JSNM12SS316 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.