You may also like
Washer 3/8 x 5/8 Nylon Flat Washers - (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 JSWN38D – Frequently Asked Questions
1) What size bolt do the Metallics JSWN38D nylon flat washers fit?
The JSWN38D is a 3/8 x 5/8 nylon flat washer, so the 3/8 inch dimension is the bore and it seats on 3/8 inch bolts, screws, or threaded rod, with a 5/8 inch outside diameter spreading the load around the hole.
2) Should I use a nylon washer or a steel washer on an electrical mounting job?
Nylon is what you reach for when you need to keep metal parts from touching: it insulates the fastener from the mounting surface and won't create a galvanic couple between dissimilar metals. Steel or fender washers are the choice when the joint has to carry real clamping load or see heat. The JSWN38D is the nylon version in 3/8 x 5/8, sold as electrical fastener stock.
3) How many washers come in a jar of Metallics JSWN38D?
100 washers per jar. The jar pack is the handy way to keep 3/8 inch nylon washers on a service truck or in a shop bin without them scattering.
4) Can I use these nylon washers to isolate a bolt from an aluminum or dissimilar-metal surface?
Yes. Nylon doesn't conduct, so a JSWN38D under the head or nut keeps the 3/8 inch fastener from making direct metal contact with the mounting surface, which is the usual reason to spec a plastic washer on mixed-metal assemblies. For full isolation you also need the bolt shank sleeved, since a flat washer only separates the faces.
How fast can I get the Metallics JSWN38D 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 JSWN38D come with a warranty?
Absolutely. The Metallics JSWN38D 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 JSWN38D?
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 JSWN38D 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.