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The VALUE COLLECTION KP40000-1 is a No. 10 screw USS flat washer made from steel with a zinc-plated finish. USS flat washers have a larger outer diameter relative to the screw size compared to SAE washers, providing a broader bearing surface that distributes load and reduces the risk of pull-through on softer materials. This washer measures 3/16 inches inner diameter, 9/16 inches outer diameter, and 3/64 inches thick. It is suited for general mechanical assembly, structural fastening, and maintenance applications across HVAC, plumbing, electrical, and general trade work where a No. 10 screw is used.
This flat washer is appropriate for residential and light commercial applications. It is used wherever a No. 10 fastener requires a wider load-bearing surface, including panel mounting, equipment bracket assembly, conduit support, and general hardware repair. The zinc plating provides basic corrosion resistance for indoor and protected outdoor environments. This washer is sold individually, with a minimum order quantity of 250 pieces per order.
Designed for use with No. 10 screws in inch-measurement fastener systems. Suitable for general mechanical assembly, equipment mounting, and hardware repair in trade and industrial applications.
Install with the washer seated flat against the workpiece surface before tightening the fastener. Ensure the mating screw is No. 10 to match the 3/16 inch inner diameter. For applications exposed to moisture or corrosive environments, evaluate whether a higher-grade corrosion-resistant finish is required. No special tools are needed for installation beyond standard hand or power drivers appropriate to the fastener type.
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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