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Washers 5/8 USS Flat St-zn (Jar 100)
Special Features
- Features: Heavy Duty Washer
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-May IN
- Inside Diameter:
- 16-Nov IN
- Outside Diameter:
- 1/3/2004 IN
- Pack Type:
- Jar
- Product Family:
- Electrical Supplies
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Washer Type:
- USS Flat Wrought Washer
- Department:
- Electrical
- Product Subgroup:
- Washers
- Product Finish:
- Zinc Chromate
- Product Length:
- 4.5 in
- Product Height:
- 7.25 in
- Product Material:
- Steel Zinc
- Product Weight:
- 6.72 lbs
- Product Width:
- 4.5 in
Metallics JWW84 – Frequently Asked Questions
1) What bolt size do the Metallics JWW84 flat washers fit?
The JWW84 is a 5/8 inch USS pattern flat washer, so it pairs with 5/8 inch bolts, rod, and anchors. USS pattern means a larger outside diameter and a wider bearing surface than the SAE washer of the same bolt size, which is what you want when you are clamping against wood, strut, sheet metal, or an oversized hole.
2) Can I use the Metallics JWW84 washers with 5/8 threaded rod hanging pipe and strut?
Yes. These are USS flat wrought washers sized for 5/8 hardware, and the intended field application is electrical, plumbing, heating and air conditioning work, which is exactly where 5/8 rod, strut nuts, and beam clamps show up. Use one under the nut to spread load across strut slots or oversized holes.
3) How many washers come in a jar of Metallics JWW84?
Each jar holds 100 of the 5/8 inch USS flat washers, and the packed weight is 6.72 lbs. The jar format is aimed at a service van or a shop bin rather than a bulk box, so a single order covers a lot of small jobs without loose hardware rolling around.
4) Are these 5/8 washers okay for damp or outdoor electrical work?
The JWW84 washer is zinc plated steel, which handles normal indoor and protected outdoor conditions. It is not stainless, so for continuous wet locations, coastal exposure, or anywhere chemicals are present, specify a stainless 5/8 flat washer instead.
5) What is the difference between a USS flat washer and a lock washer for a 5/8 bolt?
Different jobs. The JWW84 is a flat wrought washer, so it spreads the clamp load and protects the surface under the nut or bolt head. It does nothing to stop a nut backing off under vibration. If loosening is the concern, add a split lock washer or a locknut and keep the flat washer against the material.
6) Is the Metallics 5/8 flat washer heavy duty enough for structural style hanging?
Metallics describes the JWW84 as a heavy duty washer in the USS pattern, which is the thicker, wider of the two common flat washer patterns. For MRO and contractor hanging work at 5/8 it is the standard choice. For engineered structural bolted connections, a hardened structural washer is the specified part instead.
7) What is the part number to reorder these 5/8 USS washers?
Order Metallics JWW84. That number covers the 5/8 inch USS flat zinc plated steel washer in the 100 count jar, so standardizing a facility or a truck stock on it is a single line item.
How fast can I get the Metallics JWW84 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 JWW84 come with a warranty?
Absolutely. The Metallics JWW84 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 JWW84?
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
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