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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
0.375 in.0.562 in.0.040 in.5/16Low Carbon Steel - SoftBrass0Part Detail/Quote
0.437 in.0.562 in.0.041 in.3/8Low Carbon Steel - SoftBrass22600Part Detail/Quote
0.390 in.0.671 in.0.060 in.3/8Low Carbon Steel - SoftBrass20901Part Detail/Quote
0.156 in.0.750 in.0.047 in.#6Low Carbon Steel - SoftBrass22000Part Detail/Quote
0.406 in.0.812 in.0.062 in.3/8Low Carbon Steel - SoftBrass1200Part Detail/Quote
0.375 in.1.000 in.0.030 in.5/16Low Carbon Steel - SoftBrass22901Part Detail/Quote
1.000 in.1.500 in.0.134 in.Low Carbon Steel - SoftBrass0Part Detail/Quote
0.065 in.0.125 in.0.025 in.#0BrassCadmium & Yellow171650Part Detail/Quote
0.110 in.0.203 in.0.020 in.#3Low Carbon Steel - SoftCadmium & Yellow6100Part Detail/Quote
0.120 in.0.214 in.0.030 in.#4Low Carbon Steel - SoftCadmium & Yellow158001Part Detail/Quote
0.123 in.0.240 in.0.015 in.#4Low Carbon Steel - SoftCadmium & Yellow123002Part Detail/Quote
0.130 in.0.240 in.0.015 in.#4Low Carbon Steel - SoftCadmium & Yellow120351Part Detail/Quote
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