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Domestic Flat Washers | Stainless Steel & Bronze

Flat washers are utilized in the construction and assembly industry to boost efficiency and protect fragile surfaces. Domestic flat washers are utilized to ensure a safe distribution of weight while applying a bolt. In addition, stainless steel flat washers are also designed to eliminate corrosion issues that are common on metallic surfaces. Willie Washer offers a large selection of domestic flat washers in materials such as stainless steel, bronze, and nylon. 

Nylon flat washers are embedded directly under machine screws to help eliminate excess noise. USS and SAE washers are the two most common flat washers used. SAE flat Washers are Type A narrow, with a smaller OD size and are thinner than the typical USS washers. USS flat washers, on the other hand, are Type A wide washers. Willie Washers has a wide range of materials and finishes for both USS and SAE washers from which you can choose. We also offer other types of washers and parts such as clipped OD washers, D shaped ID washers, slotted square washers, and fender washers. Our catalog of stampings, machined parts, and washers are made with high-quality materials to meet your requirements.

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Inner Diameter (ID)Outer Diameter (OD)Thickness (T)Bolt Size (Inch)MaterialFinishStockRequest a Quote
0.375 in.0.437 in.0.015 in.5/16PTFE2001Part Detail/Quote
0.375 in.0.437 in.0.030 in.5/16Low Carbon Steel - Soft4576Part Detail/Quote
0.375 in.0.437 in.0.032 in.5/16BrassCadmium11001Part Detail/Quote
0.344 in.0.438 in.0.032 in.5/16Copper0Part Detail/Quote
0.344 in.0.438 in.0.032 in.5/16Copper12600Part Detail/Quote
0.375 in.0.438 in.0.032 in.5/16Brass24501Part Detail/Quote
0.344 in.0.444 in.0.062 in.5/16Low Carbon Steel - Soft0Part Detail/Quote
0.378 in.0.445 in.0.046 in.5/16PTFE23900Part Detail/Quote
0.335 in.0.450 in.0.075 in.5/16Low Carbon Steel - Soft30Part Detail/Quote
0.359 in.0.450 in.0.020 in.5/16Nylon12001Part Detail/Quote
0.328 in.0.453 in.0.015 in.5/16Stainless - 300 Series17800Part Detail/Quote
0.330 in.0.453 in.0.032 in.5/16Low Carbon Steel - SoftBlack Oxide28200Part Detail/Quote
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