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Washer 1/4 USS Flat Wshr Extra Hvy St (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
Metallics JWWHH80 – Frequently Asked Questions
1) What bolt size does the Metallics JWWHH80 flat washer fit?
It is a 1/4 inch USS pattern flat washer, so it is sized for 1/4 inch bolts and screws. USS pattern runs a larger outside diameter and bore than SAE pattern at the same bolt size, which is what you want when you need to spread load over sheet metal, strut, or wood rather than sit tight to a machined surface.
2) How many washers come in a pack of Metallics JWWHH80?
The JWWHH80 is sold in a 100 piece pack of 1/4 inch USS flat washers, so one pack covers a hundred bolted connections. Order by the pack, not the piece.
3) Is the JWWHH80 an extra heavy washer, and when do I need one?
Yes, it is an extra heavy steel flat washer. The added thickness resists cupping and crushing under high clamp loads or where the washer bears on softer material, which is why extra heavy gets specified for strut, channel, and structural attachments instead of a standard thickness washer.
4) What material is the Metallics 1/4 inch USS extra heavy flat washer made of?
Steel. There is no plating or stainless designation on the JWWHH80, so for exterior or wet locations where corrosion matters, look for a hot dip galvanized or stainless 1/4 inch USS washer instead.
5) Can I use the Metallics JWWHH80 washer on electrical strut and box mounting hardware?
Yes. The 1/4 inch USS extra heavy flat washer is carried as electrical fastener stock and pairs with the 1/4-20 hardware used on strut clamps, hanger rod attachments, and box and enclosure mounting. The wide USS outside diameter is what keeps a nut from pulling through a slotted strut or a punched enclosure flange.
6) Does the JWWHH80 flat washer come with bolts or nuts?
No. The pack is 100 flat washers only, so order your 1/4 inch bolts, nuts, and any lock washers separately.
How fast can I get the Metallics JWWHH80 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 JWWHH80 come with a warranty?
Absolutely. The Metallics JWWHH80 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 JWWHH80?
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 JWWHH80 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.