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Washers 3/8 Flat St-zn (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Division:
- Electrical H1
- Field Application:
- General Industrial Applications.
- Fits Bolt Size:
- 8-Mar IN
- Inside Diameter:
- 0.391 IN
- Outside Diameter:
- 0.875 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Thickness:
- 0.05 IN
- Washer Type:
- Flat Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Zinc Chromate
- Product Length:
- 3 in
- Product Color:
- Silver
- Product Height:
- 2.15 in
- Product Material:
- Steel Zinc
- Product Weight:
- 0.81 lbs
- Product Width:
- 3 in
- Product Depth:
- 0.05 in
Metallics JSW75D – Frequently Asked Questions
1) Will a Metallics JSW75D flat washer fit a 3/8 inch bolt or threaded rod?
Yes. The JSW75D is a 3/8 inch flat washer with a 0.391 inch inside diameter, so it slips over 3/8-16 or 3/8-18 threaded rod and 3/8 inch bolts without binding. Outside diameter is 0.875 inch, which gives a bearing surface about twice the rod diameter.
2) How thick is the Metallics JSW75D 3/8 flat washer, and will it clear a strut nut or channel lip?
It runs 0.05 inch thick, so it stacks thin. That matters when you are threading rod through a channel nut or a hanger and only have a little exposed thread left for the nut. Two of them stacked still only add a tenth of an inch.
3) Are Metallics JSW75D washers plated for corrosion resistance?
They are steel with a zinc chromate finish, silver in appearance. That plating handles general indoor industrial and electrical work, damp mechanical rooms and the like. For sustained outdoor exposure, wash-down areas or coastal sites, step up to a hot-dip galvanized or stainless 3/8 flat washer instead.
4) How many washers come in a jar of Metallics JSW75D?
100 washers per jar. The jar pack is what makes this worth keeping on the truck or in the MRO crib, it stays closed and does not spill like a bag. Jar weight is 0.81 lbs.
5) Is a flat washer or a lock washer the right choice for 3/8 rod hangers?
The JSW75D is a flat washer, so its job is spreading load and protecting the surface under the nut, not resisting loosening. On threaded rod hangers for conduit, strut and fixtures, the common practice is a flat washer against the material and a lock washer or nylon-insert nut above it if vibration is a concern. The flat washer alone will not keep a nut from backing off.
How fast can I get the Metallics JSW75D 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 JSW75D come with a warranty?
Absolutely. The Metallics JSW75D 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 JSW75D?
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 JSW75D 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.