With 82 years of experience, Seastromwashers.com, a division of Seastrom Manufacturing, is the proven leader in the manufacture of round flat washers. Seastromwashers online catalog of over 50,000 part numbers gives our customers the flexibility to find the flat, round washer that best fits your application.
Price and availability are just a click away.

 Search Seastrom Standard Round Flat Washers Catalog
Seastrom has the most comprehensive online catalog of round flat washer part numbers stocked and ready for delivery.

– Washers are available in a wide variety of metallic and non-metallic materials.
– Using our universal die sets, we can manufacture virtually any ID/OD combinations under 3" inside diameter and 4" outside diameter.
– We specialize in stocked standard and non-standard size round flat washers.

– Type B Plain Washers (ANSI B18.22.1) are featured in narrow, regular and wide series for each standard screw size.
– Washers are available in a variety of common metallic and non-metallic materials.
– Metallic washers can be procured in several different types of finishes.

Don't see what you need?
If you can't find what you need in our online catalog we will be happy to quote your custom washers.
Click here to submit a specialty quote request.