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Washer M12 Flat Wshr Lg-OD St-Zn (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
Metallics JMSWL012 – Frequently Asked Questions
1) Is the Metallics JMSWL012 a standard M12 flat washer or a larger outside diameter version?
It's the large-OD version of the M12 flat washer. The wider outer diameter spreads load over more surface, which is what you want on sheet metal, strut, slotted channel, or soft material where a standard-OD washer would pull through or dimple the surface. If you are seating against solid steel with a normal hole, a standard-OD M12 washer is the more compact choice.
2) What bolt or rod size does the JMSWL012 washer fit?
It is sized for M12 metric threaded fasteners, so it goes over M12 bolts, machine screws, or M12 threaded rod. It is not a fit for imperial 1/2 inch rod or bolts, which are slightly larger in diameter than M12.
3) Are these washers zinc plated steel, and can I use them outdoors?
Steel with a zinc plating. Zinc plating is a mild corrosion barrier meant for dry indoor and protected service, typical of electrical rough-in, strut hanging, and panel work. For wet exterior, washdown, or coastal exposure, go to stainless or hot dip galvanized instead; zinc plated steel will bloom white rust and then red rust in those conditions.
4) How many washers come in a jar of Metallics JMSWL012?
100 washers per jar, packaged in a jar rather than a bag or box, so the count stays sorted on a cart or in a gang box and you are not chasing loose hardware. One jar covers 100 fastener points, or 50 if you are washering both ends of a bolt.
5) Will a large-OD M12 flat washer work for hanging unistrut or supporting conduit on threaded rod?
Yes, that is a normal use for it. On M12 rod runs the oversized washer bears across strut slots and channel nut faces instead of sinking into the slot, which is the usual reason a standard washer fails on that detail. Pair it with the appropriate M12 nut, and add a lock washer or nylon insert nut where vibration is a concern; the flat washer alone does not resist loosening.
6) What part number do I order to get the Metallics large-OD M12 washer?
Order Metallics part number JMSWL012. That one number covers the M12 large-OD zinc plated steel flat washer in the 100-count jar; there are no separate finish or size options to specify.
How fast can I get the Metallics JMSWL012 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 JMSWL012 come with a warranty?
Absolutely. The Metallics JMSWL012 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 JMSWL012?
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