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The VALUE COLLECTION 31375 is a No. 12 SAE flat washer manufactured from steel with a zinc-plated finish. SAE flat washers distribute load across a fastener bearing surface, reducing the risk of pull-through and surface damage under torque. This washer measures 1/4 inch inner diameter, 9/16 inch outer diameter, and 1/16 inch thick. The zinc plating provides corrosion resistance suitable for general indoor and light outdoor applications. Electricians, plumbers, HVAC technicians, and general tradespeople use flat washers daily across mechanical assemblies, panel mounting, equipment installation, and structural fastening tasks.
This SAE flat washer is sized for No. 12 fasteners and is appropriate for use in residential and commercial mechanical assemblies where a standard inch-measurement washer is specified. The SAE standard calls for a larger outer diameter relative to the screw size compared to USS series washers, making these a common choice when broader load distribution is needed at the fastener seat. Sold individually per package, with a minimum order quantity of 500 pieces, this part is suited for bulk stocking in trade shops, service vans, and supply rooms.
Designed for use with No. 12 inch-series fasteners in general mechanical, electrical, plumbing, and HVAC assembly applications where an SAE flat washer is specified.
Flat washers are installed between the fastener head or nut and the mating surface before tightening. Always power down or de-energize equipment before servicing panels or assemblies that require fastener work. Use the correct driver or wrench for the fastener type to avoid stripping. Verify washer material and finish are appropriate for the service environment before installation.
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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