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Washers 7/16" Flat SAE Gr8 St-zn (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Length:
- 3 in
- Product Height:
- 2.15 in
- Product Material:
- Steel
- Product Weight:
- 0.97 lbs
- Product Width:
- 3 in
Metallics JG8SW79 – Frequently Asked Questions
1) What bolt size does the Metallics JG8SW79 flat washer fit?
The JG8SW79 is a 7/16 inch SAE flat washer, so it pairs with 7/16 inch diameter bolts and screws. SAE pattern means a smaller outside diameter and narrower bearing surface than a USS washer of the same bolt size, which is what you want when the washer has to sit on a tight flange or inside a narrow channel. If you need more bearing area to spread load on soft material or an oversized hole, use the USS pattern instead.
2) Is the JG8SW79 washer hardened, or just a standard flat washer?
It is a Grade 8 washer, the hardened class used under Grade 8 bolts and Grade 8 or Class 8 nuts in structural and high-torque joints. A plain commercial flat washer will dish or extrude under that clamp load; this one is sized and hardened to carry it. Base material is steel with a zinc finish.
3) How many washers come in a jar of Metallics JG8SW79?
Each jar holds 100 of the 7/16 inch Grade 8 flat washers. The jar is a wide-mouth container roughly 3 x 3 x 2.15 inches, so it fits a van bin or gang box shelf, and the full jar weighs about 0.97 lbs.
4) Can I use zinc plated Grade 8 washers outdoors or on a rooftop unit?
Zinc plating on these steel washers handles dry indoor and sheltered conditions and short-term weather exposure. For sustained outdoor, rooftop, or wash-down service, zinc will eventually bloom and rust, so hot dip galvanized or stainless hardware is the better call there. Note also that stainless is not offered in Grade 8 hardened strength, so if you need both corrosion life and Grade 8 clamp load, go galvanized rather than stainless.
5) Where is the Metallics JG8SW79 washer made?
Country of origin is China. That matters if you are bidding public or federally funded work with domestic-content requirements, so check the spec on the drawing before you submit these.
How fast can I get the Metallics JG8SW79 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 JG8SW79 come with a warranty?
Absolutely. The Metallics JG8SW79 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 JG8SW79?
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 JG8SW79 from ZenSupply?
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and
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