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Flat Washers

Round flat washers are the most common type of washers supplied and they have the most uses. They are used to span oversized holes, and can spread loads over wider areas. They prevent surface damage and embedment from nuts and bolts, and provide a consistent surface for more predictable joints. They can also be used as shims to compensate for tolerance variations.

Willie Washer stocks over 60,000 different special washers for same day shipments. Check our inventory for various sizes, shapes, materials and finishes.

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Inner Diameter (ID)Outer Diameter (OD)Thickness (T)Bolt Size (Inch)MaterialFinishStockRequest a Quote
0.275 in.0.785 in.0.125 in.1/4Low Carbon Steel - SoftGalvanized4360Part Detail/Quote
0.406 in.0.812 in.0.062 in.3/8Spring Steel - HardGalvanized4200Part Detail/Quote
0.406 in.0.812 in.0.062 in.3/8Low Carbon Steel - SoftGalvanized4700Part Detail/Quote
0.406 in.0.812 in.0.105 in.3/8Low Carbon Steel - SoftGalvanized0Part Detail/Quote
0.406 in.0.812 in.0.187 in.3/8Low Carbon Steel - SoftGalvanized6600Part Detail/Quote
0.408 in.0.812 in.0.062 in.3/8Low Carbon Steel - SoftGalvanized5975Part Detail/Quote
0.421 in.0.812 in.0.062 in.3/8Spring Steel - HardGalvanized4400Part Detail/Quote
0.437 in.0.812 in.0.032 in.3/8Low Carbon Steel - SoftGalvanized1201Part Detail/Quote
0.437 in.0.812 in.0.125 in.3/8Low Carbon Steel - SoftGalvanized1401Part Detail/Quote
0.531 in.0.812 in.0.074 in.1/2Low Carbon Steel - SoftGalvanized2400Part Detail/Quote
0.543 in.0.812 in.0.150 in.1/2Low Carbon Steel - SoftGalvanized0Part Detail/Quote
0.203 in.0.843 in.0.045 in.#10Low Carbon Steel - SoftGalvanized0Part Detail/Quote
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