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Washer 5/8 G5 USS Flat Wshr St-Zn (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Washers
Metallics JG5WW84 – Frequently Asked Questions
1) What bolt size does the Metallics JG5WW84 flat washer fit?
The JG5WW84 is a 5/8 inch USS pattern flat washer, so it pairs with 5/8 inch bolts, anchors, and threaded rod. USS pattern means a wider outside diameter and larger hole clearance than the SAE pattern of the same nominal size, which is what you want on wood, strut, and structural steel connections where the bearing surface matters more than a tight fit around the shank.
2) Is the JG5WW84 a Grade 5 washer, and does that matter for my bolted connection?
It is a Grade 5 (G5) 5/8 USS flat washer. The grade matters when you are torquing a Grade 5 or higher bolt: a soft commercial washer can dish or embed under the nut and let the joint relax. Match the washer grade to the fastener grade on any load-bearing or seismic bracing connection.
3) Are these 5/8 washers zinc plated or bare steel?
Steel with a zinc plating. Zinc gives mild corrosion resistance for dry interior and protected work, electrical rooms, strut runs, and panel mounting. For sustained outdoor exposure, wet locations, or coastal air, step up to hot dip galvanized or stainless 5/8 washers instead.
4) Can I use a 5/8 USS flat washer with 5/8 strut channel hardware and threaded rod hangers?
Yes. A 5/8 USS flat washer spreads the nut load on strut, channel nuts, beam clamps, and 5/8 threaded rod hanger assemblies, and the oversize USS hole clears rolled rod threads without binding. For a rod hanger you still need the nut and, if the assembly can vibrate, a lock washer or double nut, since a flat washer alone does not resist loosening.
5) What is the Metallics part number for the 5/8 zinc USS flat washer jar?
JG5WW84 is the Metallics catalog number for the 5/8 inch Grade 5 USS flat washer, zinc plated steel, 100 per jar. Order by that number to avoid getting the narrower SAE pattern washer in the same nominal size.
6) Do I need a flat washer under both the bolt head and the nut?
On a 5/8 bolted connection into wood, sheet metal, or an oversized hole, use a flat washer on both ends so neither the head nor the nut pulls through or digs in. Steel to steel with a properly sized hole normally only needs one under the turned element. A jar of 100 covers roughly 50 two washer connections.
How fast can I get the Metallics JG5WW84 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JG5WW84 come with a warranty?
Absolutely. The Metallics JG5WW84 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 JG5WW84?
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