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Washers 3/8 G8 USS Flat St-zn (Jar 100)
Manufacturer Resources
Product Specs
- Ansi:
- ANSI
- Country Of Origin:
- MUL
- Division:
- Electrical H1
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Fits Bolt Size:
- 8-Mar IN
- Inside Diameter:
- 16-Jul IN
- Outside Diameter:
- 1 IN
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- Wrought Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Zinc Chromate
- Product Length:
- 3 in
- Product Height:
- 2.7 in
- Product Material:
- Hardened Steel
- Product Weight:
- 1.28 lbs
- Product Width:
- 3 in
Metallics JG8WW82 – Frequently Asked Questions
1) Are these Grade 8 washers hardened, and can I use them under Grade 8 bolts?
Yes. The JG8WW82 is a hardened steel Grade 8 washer, so it's the right washer to pair with Grade 8 or higher strength bolting. A standard low-carbon flat washer can dish or embed under that kind of clamp load; a hardened one holds its face.
2) What is the difference between a USS flat washer and an SAE flat washer in 3/8 inch?
USS is the wide pattern and SAE is the narrow one. The JG8WW82 is the USS version at 1 inch outside diameter, so it spreads load over more surface, which is what you want on strut, sheet metal, wood, or any soft or oversized hole. If you're bolting into a machined face or a tight counterbore where 1 inch won't sit flat, go with the SAE narrow washer instead.
3) What finish is on the Metallics 3/8 Grade 8 USS washer, and is it OK outdoors?
The washers are zinc chromate plated steel. That's a general-purpose corrosion finish suited to dry indoor and protected mechanical rooms, electrical rooms, and HVAC work. For direct weather exposure, wash-down, or coastal service, specify a hot-dip galvanized or stainless washer instead.
4) Are these washers suitable for electrical strut and conduit hanging work?
That's the intended use. Metallics lists this washer for the electrical, plumbing, heating and air conditioning trades, and a 1 inch OD flat washer on a 3/8 rod or bolt is the common bearing washer for strut channel, threaded rod hangers, and trapeze supports where the hole is larger than the fastener.
5) How are the Metallics JG8WW82 washers packaged?
They ship in a jar of 100 pieces, weighing 1.28 lbs. The jar suits a service van or a job box where you want to pour out a handful without a bag splitting open.
6) Is the JG8WW82 a stamped wrought washer or a machined one?
It's a wrought washer, meaning it's punched and formed from flat steel stock rather than machined. That's the standard construction for USS and SAE flat washers, and it's what the 3/8 Grade 8 Metallics washer is.
7) What part number do I order for the Metallics 3/8 Grade 8 USS flat washer?
Order Metallics MPN JG8WW82. That number covers the 3/8 inch Grade 8 USS flat washer, zinc plated, in the 100-piece jar.
How fast can I get the Metallics JG8WW82 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
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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 JG8WW82 come with a warranty?
Absolutely. The Metallics JG8WW82 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 JG8WW82?
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