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The VALUE COLLECTION FWUIS0310-10LBBX is a USS flat washer designed for use with 5/16 inch screws and fasteners. Manufactured from steel with a zinc-plated finish, it provides a broad bearing surface that distributes load and reduces the risk of fastener pull-through in standard fastening applications. The washer measures 0.37 inches inside diameter, 0.905 inches outside diameter, and 0.104 inches thick. It follows USS (United States Standard) sizing conventions and is sized in the inch measurement system. Electricians, plumbers, HVAC technicians, and general contractors use USS flat washers as part of routine mechanical and structural assembly work.
This washer is suited for residential and light commercial applications wherever a standard USS-series flat washer is required. Common uses include equipment mounting, pipe supports, structural connections, and panel fastening. The zinc-plated steel construction holds up in typical indoor and sheltered environments. It is sold individually and is appropriate for low-volume service calls as well as stocking in a standard tool kit or service vehicle.
Designed as an OEM-style replacement or service-stock flat washer for use with 5/16 inch fasteners in standard USS-dimension hardware assemblies.
Install using standard hand tools appropriate for the fastener type. Verify the washer seats flat against the mating surface before torquing the fastener. Power down or de-energize any equipment before accessing fastened components in electrical or mechanical enclosures. Follow applicable codes such as NEC or IPC when using hardware in electrical or plumbing system assemblies.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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