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Washer 10 Flat Wshr Steel BO (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 JSW72BLK – Frequently Asked Questions
1) What size and material are the Metallics JSW72BLK flat washers?
The JSW72BLK is a #10 flat washer made of steel with a black oxide finish. Black oxide gives a dark, non-reflective surface, which is why these get used on exposed strut, channel, and fixture work where a bright zinc washer would stand out.
2) Will these #10 washers work with #10 machine screws and sheet metal screws?
Yes. A #10 flat washer is sized to the #10 screw series, so it seats under #10-24 and #10-32 machine screws as well as #10 sheet metal screws. It spreads the load on the screw head and protects the surface finish; it does not provide any locking action, so pair it with a lock washer or a locking nut where vibration is a concern.
3) How many washers come in a jar of Metallics JSW72BLK?
Each jar holds 100 of the #10 black oxide steel flat washers. It ships as a jar pack rather than loose count, so one order covers a full fixture-hanging or panel job without re-counting bulk hardware.
4) Is black oxide hardware suitable for outdoor or damp electrical work?
Black oxide on steel is a cosmetic and mild corrosion-resisting finish, not a weatherproof coating like hot-dip galvanizing or stainless. These #10 washers are a dry-interior part: panel interiors, fixture mounting, device and enclosure work indoors. For wet locations, outdoor runs, or washdown areas, specify a galvanized or stainless #10 flat washer instead.
5) Do I need a flat washer and a lock washer, or is one enough?
They do different jobs. The JSW72BLK #10 flat washer distributes the clamping load and keeps the screw head from digging into sheet metal or a painted surface. It will not stop a fastener backing out. On equipment that vibrates, stack a #10 flat washer against the surface and a #10 split lock washer under the nut or screw head, or use a nylon-insert lock nut.
How fast can I get the Metallics JSW72BLK 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 JSW72BLK come with a warranty?
Absolutely. The Metallics JSW72BLK 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 JSW72BLK?
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 JSW72BLK 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.