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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
0.125 in.0.312 in.0.027 in.#4Low Carbon Steel - SoftCadmium3301Part Detail/Quote
0.128 in.0.312 in.0.028 in.#4Low Carbon Steel - SoftCadmium22501Part Detail/Quote
0.128 in.0.312 in.0.031 in.#4Low Carbon Steel - SoftCadmium0Part Detail/Quote
0.128 in.0.312 in.0.035 in.#4Low Carbon Steel - SoftCadmium451Part Detail/Quote
0.128 in.0.312 in.0.095 in.#4Low Carbon Steel - SoftCadmium101Part Detail/Quote
0.128 in.0.312 in.0.112 in.#4Low Carbon Steel - SoftCadmium5451Part Detail/Quote
0.130 in.0.312 in.0.031 in.#4Low Carbon Steel - SoftCadmium1975Part Detail/Quote
0.137 in.0.312 in.0.030 in.#5Low Carbon Steel - SoftCadmium2901Part Detail/Quote
0.144 in.0.312 in.0.032 in.#5Low Carbon Steel - SoftCadmium2001Part Detail/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
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