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Washers 12 X 9/16 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
- Outside Diameter:
- 16-Sep IN
- Pack Type:
- Jar
- 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:
- Steel
- Product Weight:
- 0.32 lbs
- Product Width:
- 3 in
Metallics JMSW22 – Frequently Asked Questions
1) What size screw do the Metallics JMSW22 sealing washers fit?
The JMSW22 is a #12 sealing washer with a 9/16 inch outside diameter, so it pairs with #12 screws such as self-drilling or sheet metal fasteners. The 9/16 inch OD gives you enough bearing surface to seat the rubber against the panel without the washer overhanging a narrow flange.
2) Can I use a sealing washer instead of buying pre-assembled screws with the washer already attached?
That is exactly the trade-off the JMSW22 is built for. It is a loose sealing and cushioning washer that lets you add the seal to plain screws you already stock, instead of ordering pre-assembled construction fasteners in every length you need. You carry one jar of washers and whatever screw lengths the job calls for.
3) Will these washers hold up outdoors or in a damp mechanical room?
The washer body is steel with a galvanized finish, which is the standard choice for exterior and damp interior work like rooftop equipment, duct hangers and strut runs. The sealing element is what keeps water out of the fastener hole; the galvanizing keeps the metal cap from rusting around it.
4) Are the Metallics JMSW22 washers made in the USA?
Country of origin on the JMSW22 sealing washer is the United States, which matters if you are buying against a domestic-preference specification on a government or institutional job.
5) What trades actually use these master seal washers?
Metallics lists the JMSW22 for electrical, plumbing, heating and air conditioning work. In practice that means sealing fastener penetrations on enclosures, panels, duct and sheet metal where you want to keep water and air out of the hole and cushion the joint.
How fast can I get the Metallics JMSW22 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 JMSW22 come with a warranty?
Absolutely. The Metallics JMSW22 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 JMSW22?
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 JMSW22 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.