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The VALUE COLLECTION FWSIS0-50-10LBBX is a No. 5 screw size SAE flat washer manufactured from Grade 2 steel with a zinc-plated finish. It measures 9/64 inches inner diameter, 9/32 inches outer diameter, and 0.03 inches thick. Designed to distribute load evenly under bolt heads and nuts, this washer is built to ASME B18.21.1 dimensional standards. The zinc plating provides a baseline level of corrosion resistance suitable for general-purpose indoor and light-duty outdoor fastening applications. Plumbers, electricians, HVAC technicians, and general maintenance professionals keep these washers on hand for routine fastener assemblies across a wide range of trade work.
This washer is sized for No. 5 screws and suits residential and light commercial construction, mechanical assemblies, equipment mounting, and panel work where a small-diameter load-spreading washer is needed. The SAE specification means the outer diameter and thickness conform to tighter tolerances than USS-pattern washers of the same screw size, making it the preferred choice when a close OD fit is required by the joint design.
Designed for use with No. 5 SAE-pattern screw and bolt assemblies where ASME B18.21.1 dimensional compliance is required.
Install using standard hand tools; ensure the washer seats flush against the mating surface before tightening the fastener. Power down or de-energize any equipment before introducing fasteners in electrical or control panel applications. Follow applicable codes such as the NEC for electrical assemblies or the IPC for plumbing fixture connections. Zinc-plated washers are not recommended for prolonged exposure to standing water or highly corrosive environments without additional protective measures.
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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