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Washers M5 Flat SS (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Material:
- Stainless Steel
Metallics JMSW5SS – Frequently Asked Questions
1) What size bolt or screw do the Metallics JMSW5SS flat washers fit?
The JMSW5SS is an M5 flat washer, so it is sized for M5 metric screws and bolts. If your fasteners are imperial (#10 or 3/16 inch), you want an SAE or USS washer instead, not this metric part.
2) Are these M5 washers stainless steel, and can they be used outdoors or in damp areas?
Stainless steel is the material, which is why these get specified for exterior enclosures, wet locations, and damp mechanical rooms where plated steel washers would rust and stain the surface under them.
3) How many washers come in a jar of Metallics JMSW5SS?
100 M5 flat washers per jar. The jar pack is the ordering unit, so a single order line gets you the full 100 count, which is the usual way electricians buy small metric hardware for panel and fixture work.
4) Should I use a flat washer or a lock washer with M5 screws in an electrical enclosure?
A flat washer like the JMSW5SS spreads the clamping load and protects the surface under the screw head, which is what you want on sheet metal, panel covers, and soft or painted surfaces. It does not resist loosening from vibration. On equipment that vibrates, use an M5 split or tooth lock washer, often stacked with a flat washer against the panel.
5) Will stainless M5 washers cause corrosion against aluminum enclosures?
Stainless against aluminum is a dissimilar metal pair and can set up galvanic corrosion in a wet or coastal location. Indoors and dry it is routine practice. If the enclosure is aluminum and outdoors, isolate the joint or use a matching-metal washer.
6) Is the Metallics JMSW5SS a metric washer dimensioned to ANSI or to a metric standard?
It is an M5 metric flat washer carried under an ANSI dimensional reference. Practically, order it by the M5 screw size you are using rather than by an inch bore dimension.
7) Are these washers suitable for electrical panel and fixture assembly work?
Yes, these are catalogued for electrical work, and M5 stainless flat washers are a common need on luminaire mounting hardware, control panel covers, and grounding hardware that uses metric screws. Jar of 100 keeps the truck stocked.
How fast can I get the Metallics JMSW5SS 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 JMSW5SS come with a warranty?
Absolutely. The Metallics JMSW5SS 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 JMSW5SS?
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installation tips, and troubleshooting. Contact Us
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