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Washers 7/8 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-Jul IN
- Inside Diameter:
- 15/16 IN
- Outside Diameter:
- 2/1/2004 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:
- 4.5 in
- Product Height:
- 7.25 in
- Product Material:
- Hardened Steel
- Product Weight:
- 13.07 lbs
- Product Width:
- 4.5 in
Metallics JG8WW84 – Frequently Asked Questions
1) Will a Metallics JG8WW84 flat washer fit a 7/8 inch bolt?
Yes. The JG8WW84 is a 7/8 inch USS flat washer with a 15/16 inch inside diameter, so it slips over a 7/8 inch bolt or threaded rod with the small clearance USS pattern washers are made with. If you are running 7/8 inch all-thread for trapeze or strut hangers, this is the size that goes under the nut.
2) Is the JG8WW84 washer hardened enough to use with Grade 8 bolts?
It is a Grade 8 washer made from hardened steel, which is what you want under a Grade 8 nut or bolt head. A soft commercial washer will dish out under that clamp load; this one is made to take it.
3) Are these zinc plated washers okay for damp or outdoor mechanical rooms?
The finish is zinc chromate, which gives corrosion protection for indoor and sheltered work such as electrical rooms, mechanical spaces, and covered exterior runs. For constant wet exposure or coastal conditions, stainless or hot dip galvanized hardware is the better call.
4) What is the difference between a USS flat washer and an SAE washer for 7/8 inch bolts?
USS pattern washers, which is what the JG8WW84 is, run a larger outside diameter and a slightly larger hole than SAE pattern at the same bolt size. USS spreads the load over more surface, so it is the choice on strut, channel, wood, or anything soft. SAE is tighter and used where the bearing area is small or the fastener seats in a counterbore.
5) How do Metallics JG8WW84 washers come packaged?
They ship in a jar of 100 washers. The jar keeps them contained on a service truck or in a fastener bin rather than loose in a bag, which matters when you are pulling 7/8 inch hardware one at a time on a hanger job.
6) What trades use a 7/8 inch Grade 8 USS flat washer like this?
Electrical, plumbing, and HVAC work. Typical uses are trapeze hangers, threaded rod supports, strut connections, and equipment anchoring where a hardened washer is needed under a high grade nut.
7) Is this a stamped wrought washer or a forged one?
The JG8WW84 is a wrought washer, meaning it is punched and formed from hardened steel plate rather than cast. That is the standard construction for structural flat washers used with high grade bolting.
How fast can I get the Metallics JG8WW84 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 JG8WW84 come with a warranty?
Absolutely. The Metallics JG8WW84 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 JG8WW84?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JG8WW84 from ZenSupply?
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