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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
0.144 in.0.312 in.0.078 in.#5Low Carbon Steel - SoftCadmium3101Part Detail/Quote
0.145 in.0.312 in.0.034 in.#5Low Carbon Steel - SoftCadmium19401Part Detail/Quote
0.147 in.0.312 in.0.030 in.#5BrassCadmium0Part Detail/Quote
0.147 in.0.312 in.0.032 in.#5Low Carbon Steel - SoftCadmiumPart Detail/Quote
0.149 in.0.312 in.0.032 in.#5Low Carbon Steel - SoftCadmium10000Part Detail/Quote
0.154 in.0.312 in.0.030 in.#6Low Carbon Steel - SoftCadmium0Part Detail/Quote
0.155 in.0.312 in.0.032 in.#6BronzeCadmium950Part Detail/Quote
0.156 in.0.312 in.0.093 in.#6Low Carbon Steel - SoftCadmium0Part Detail/Quote
0.158 in.0.312 in.0.035 in.#6Low Carbon Steel - SoftCadmium5000Part Detail/Quote
0.159 in.0.312 in.0.030 in.#6Low Carbon Steel - SoftCadmium0Part Detail/Quote
0.170 in.0.312 in.0.015 in.Low Carbon Steel - SoftCadmium8502Part Detail/Quote
0.171 in.0.312 in.0.030 in.#8Low Carbon Steel - SoftCadmium0Part Detail/Quote
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