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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
0.127 in.0.187 in.0.005 in.#4Low Carbon Steel - SoftZinc & Clear4500Part Detail/Quote
0.128 in.0.187 in.0.003 in.#4Stainless - 300 Series15500Part Detail/Quote
0.128 in.0.187 in.0.005 in.#4Spring Steel - Hard6001Part Detail/Quote
0.128 in.0.187 in.0.005 in.#4Bronze13480Part Detail/Quote
0.128 in.0.187 in.0.007 in.#4Spring Steel - Hard27001Part Detail/Quote
0.128 in.0.187 in.0.053 in.#4Aluminum1176Part Detail/Quote
0.130 in.0.187 in.0.014 in.#4Stainless - 300 Series0Part Detail/Quote
0.133 in.0.187 in.0.015 in.#5Stainless - 300 Series10501Part Detail/Quote
0.133 in.0.187 in.0.015 in.#5Stainless - 300 Series1001Part Detail/Quote
0.144 in.0.187 in.0.010 in.#5Stainless - 300 Series50000Part Detail/Quote
0.000 in.0.188 in.0.064 in.Brass564Part Detail/Quote
0.054 in.0.188 in.0.038 in.Brass22450Part Detail/Quote
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