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Washer 5/16 x 1/2 Nylon Flat Washers (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
Metallics JSWN516D – Frequently Asked Questions
1) What bolt or screw size do the Metallics JSWN516D nylon washers fit?
They are 5/16 x 1/2 washers, so the bore suits 5/16 inch bolts, screws, or threaded rod, with a 1/2 inch outside diameter for the bearing surface. Standard practice on flat washers is to call the size by the fastener diameter first and the outside diameter second.
2) Why use a nylon washer instead of a steel one on an electrical box or panel?
Nylon is non-conductive, so a nylon flat washer isolates the fastener head from the surface instead of bonding to it. Electricians also use them to keep steel hardware from biting into painted enclosures, plastic covers, or dissimilar metal, which is why the JSWN516D is carried as an electrical fastener rather than a structural one.
3) How many washers come in a jar of Metallics JSWN516D?
One hundred washers per jar. The jar pack is the standard unit for these, so ordering one gets you the full hundred count rather than a loose piece count, which is how most van and shop stock is replenished.
4) Can I use nylon flat washers under a nut that will be torqued down hard?
Not the best choice for high clamp load. Nylon will compress and cold flow under sustained torque, so a 5/16 nylon washer belongs where you want insulation, surface protection, or light spacing, not where the joint depends on preload. Use a steel or hardened flat washer for structural connections and save these for the isolating work.
5) What is the Metallics part number for the 5/16 inch nylon flat washer jar?
JSWN516D is the Metallics part number, and it covers the 5/16 x 1/2 nylon flat washer supplied 100 to a jar. There is a single configuration under that number, so there is no finish or size option to specify when you order it.
How fast can I get the Metallics JSWN516D 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 JSWN516D come with a warranty?
Absolutely. The Metallics JSWN516D 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 JSWN516D?
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 JSWN516D 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.