You may also like
Washers 1/4 X 5/8 Mstr Seal Galv (Jar 100)
Special Features
- Features: Provides an Affordable Alternative to Pre-Assembled Construction Fasteners
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Country Of Origin:
- United States
- Division:
- Electrical H1
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Inside Diameter:
- 4-Jan IN
- Outside Diameter:
- 8-May IN
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- Sealing and Cushioning Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Galvanized
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Galvanized Steel
- Product Weight:
- 0.36 lbs
- Product Width:
- 3 in
Metallics JMSW23 – Frequently Asked Questions
1) What does a master seal washer actually do on a fastener?
It is a sealing and cushioning washer: it goes under the fastener head to close off the hole against water and to cushion the joint, which is what keeps weather out of roof, duct, and outdoor enclosure penetrations. Metallics sells it as a lower cost way to get the same result as buying pre-assembled sealing fasteners, so you can use plain screws you already stock.
2) Are these washers okay for outdoor or damp locations?
They are galvanized steel, which is the standard corrosion-resistant carbon steel finish for exterior and damp work. Galvanized suits rooftop, exterior conduit, and ductwork penetrations. For coastal salt spray or chemical exposure, stainless is the usual step up.
3) How many washers come in a jar of Metallics JMSW23?
One hundred washers per jar, packed in a jar rather than a bag or box, so it stays closed on a truck shelf or gang box. The jar weighs 0.36 lbs and measures 3 x 2.15 x 3 inches, small enough to keep in a van bin.
How fast can I get the Metallics JMSW23 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 JMSW23 come with a warranty?
Absolutely. The Metallics JMSW23 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 JMSW23?
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 JMSW23 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.