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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
0.335 in.0.625 in.0.062 in.5/16Low Carbon Steel - SoftSpecial Finish46165Part Detail/Quote
0.335 in.0.625 in.0.062 in.5/16Low Carbon Steel - SoftSpecial Finish0Part Detail/Quote
0.343 in.0.625 in.0.104 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.344 in.0.625 in.0.062 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.344 in.0.625 in.0.062 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.344 in.0.625 in.0.063 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.344 in.0.625 in.0.063 in.5/16Low Carbon Steel - SoftSpecial Finish25700Part Detail/Quote
0.344 in.0.625 in.0.109 in.5/16Spring Steel - HardSpecial Finish12050Part Detail/Quote
0.345 in.0.625 in.0.062 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.350 in.0.625 in.0.078 in.5/16Spring Steel - HardSpecial Finish0Part Detail/Quote
0.375 in.0.625 in.0.031 in.5/16Low Carbon Steel - SoftSpecial Finish22800Part Detail/Quote
0.375 in.0.625 in.0.032 in.5/16Low Carbon Steel - SoftSpecial Finish8950Part Detail/Quote
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