You may also like
Washers 5/16 Flat St-zn (Box 9500)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Division:
- Electrical H1
- Pack Type:
- Box
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 9 in
- Product Height:
- 6.13 in
- Product Material:
- Steel Zinc
- Product Weight:
- 58.15 lbs
- Product Width:
- 9 in
Metallics SW74B – Frequently Asked Questions
1) Is the Metallics SW74B a flat washer or a lock washer?
Flat. The SW74B is a plain round flat washer in 5/16 inch, used to spread bearing load and protect the surface. It does nothing to resist loosening, so if you need vibration resistance you want a split lock washer or a serrated flange nut in the same 5/16 size.
2) Are Metallics SW74B washers plated for corrosion resistance?
They're zinc plated steel. Zinc plating handles dry indoor and covered electrical work, but it is not a stainless or hot dip galvanized washer, so for direct outdoor exposure, wet locations, or corrosive environments choose a stainless or galvanized 5/16 washer instead.
3) How many washers come in a box of Metallics SW74B?
One box holds 9,500 pieces of the 5/16 inch zinc plated flat washer, packed as a box. That bulk quantity is aimed at electrical contractors and MRO stockrooms running strut, hanger rod, and panel work rather than a single job.
4) Can I use these 5/16 flat washers with 5/16 threaded rod for hanging conduit and strut?
Yes. A 5/16 inch zinc plated steel flat washer is the standard spreader under a nut on 5/16 rod or through strut and channel, distributing load and keeping the nut from pulling through an oversized hole. Pair it with a 5/16 nut and, where vibration is a concern, a lock washer or locknut, which are ordered separately.
5) How heavy is a full box of Metallics SW74B 5/16 washers, and will it fit on a shelf?
A full box runs 58.15 lbs and measures 9 x 9 x 6.13 inches, so it is a two-hand lift but sits easily on a standard stockroom shelf or job box.
How fast can I get the Metallics SW74B 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 SW74B come with a warranty?
Absolutely. The Metallics SW74B 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 SW74B?
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 SW74B 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.