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Washers 1/4 USS Flat SS (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Division:
- Electrical H1
- Field Application:
- USS Washers used to improve stress distribution.
- Fits Bolt Size:
- 4-Jan IN
- Inside Diameter:
- 0.327-0.307 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Thickness:
- 0.080-0.051 IN
- Washer Type:
- USS Flat Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Stainless Steel
- Product Length:
- 3 in
- Product Color:
- Stainless Steel
- Product Height:
- 2.15 in
- Product Material:
- Stainless Steel
- Product Weight:
- 0.34 lbs
- Product Width:
- 3 in
- Product Depth:
- 0.080-0.051 in
Metallics JWW80SS – Frequently Asked Questions
1) Are these 1/4 inch washers stainless steel, or just stainless plated?
Solid stainless steel. Material, finish, and color on the JWW80SS are all stainless, not a plating over carbon steel, so they hold up outdoors and in wet or washdown areas without the rust bleed you get from zinc-plated washers.
2) What is the difference between a USS flat washer and an SAE washer for 1/4 inch hardware?
USS washers, like the JWW80SS, have a larger outside diameter than SAE washers of the same bolt size, so they spread load over more surface. That is the point of them: USS pattern washers are used to improve stress distribution. If you are bolting into sheet metal, strut, wood, or any soft or slotted material, the USS pattern is the one you want. If the washer has to sit inside a tight counterbore or under a small flange, an SAE washer is the better fit.
3) How many washers come in a jar of Metallics JWW80SS?
100 pieces per jar. The jar packaging is the practical part for a service van or a job box, since it keeps the count contained instead of loose in a tray. Jar weight is 0.34 lbs.
4) Will a flat washer alone keep a 1/4 inch bolt from backing out under vibration?
No. A flat washer like the JWW80SS distributes load across the clamped surface, it does not resist loosening. On vibrating equipment, fan housings, or motor mounts you still need a lock washer, a nylon-insert lock nut, or thread locker in addition to the flat washer.
5) How thick is the Metallics JWW80SS washer?
Thickness runs 0.051 to 0.080 inch. Worth knowing if you are stacking washers under a nut and counting thread engagement, or if the fastener has to seat in a shallow recess.
How fast can I get the Metallics JWW80SS 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 JWW80SS come with a warranty?
Absolutely. The Metallics JWW80SS 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 JWW80SS?
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 JWW80SS 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.