Metallics JSSW13 Washers 5/16 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.30
$0.30

Metallics JSSW13 Washers 5/16 Flat SS (Jar 100)

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Model: JSSW13
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.30
$0.30
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Washers 5/16 Flat SS (Jar 100)

Manufacturer Resources

Product Specs

Ansi:
ANSI
Division:
Electrical H1
Field Application:
Metal to Metal
Fits Bolt Size:
16-May IN
Inside Diameter:
Nov-32 IN
Outside Diameter:
16-Nov IN
Pack Type:
Jar
Product Group:
Fasteners
Sub Division:
Electrical-E H2
Washer Type:
Flat Washer
Department:
Electrical
Product Subgroup:
Washers
Product Length:
3 in
Product Height:
2.15 in
Product Material:
Stainless Steel
Product Weight:
0.49 lbs
Product Width:
3 in

Metallics JSSW13 – Frequently Asked Questions

1) Will the Metallics JSSW13 washer fit a 5/16 inch bolt?
Yes. The JSSW13 is a 5/16 inch flat washer, sized to fit 5/16 inch bolts and machine screws, so it drops straight onto 5/16-18 threaded rod, hex bolts, or strut hardware without reaming.
2) Are these 5/16 flat washers stainless steel or just plated?
Solid stainless steel, not a zinc-plated carbon washer. That matters on outdoor, damp, or washdown work where a plated washer rusts and streaks the surface it sits on. Metallics lists the JSSW13 as stainless steel.
3) How many 5/16 stainless flat washers come in a jar of Metallics JSSW13?
100 washers per jar. The jar pack is the shop-stock format, so a single order gives an electrician or maintenance tech a bench quantity rather than a loose handful.
4) What is this flat washer intended to be used on, wood or metal?
Metal to metal is the application Metallics lists for the JSSW13. It spreads load between steel parts, under a nut on strut, channel, enclosure feet, or equipment mounting. For bolting into wood you generally want a larger outside diameter washer to keep the head from pulling through.
5) Is a flat washer or a lock washer the right choice for bolting equipment to strut?
The JSSW13 is a flat washer, so its job is spreading clamp load and protecting the mating surface, not resisting loosening. On vibrating equipment, pair a flat washer under the nut with a split lock washer or use a nylon-insert lock nut. Where you only need bearing area over a slot or oversized hole, the flat washer alone is what you want.
6) How much does a jar of 100 of these 5/16 washers weigh for shipping or a stockroom bin?
A jar runs 0.49 lbs, and the container measures 3 x 3 x 2.15 inches, so it fits a standard small-parts bin or a van drawer without repacking.
How fast can I get the Metallics JSSW13 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 JSSW13 come with a warranty?
Absolutely. The Metallics JSSW13 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 JSSW13?
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 JSSW13 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.