standard stocked washers & hardware

  • Quality Products
  • No Waiting
  • Huge Inventory
  • Order Today
  • Made in the U.S.A.


our custom capabilities

Seastrom is the Premier Manufacturer of Precision Washers and Precision Assembly Hardware

As a full-service washer manufacturer and supplier, Seastrom offers the most comprehensive online catalog of high-quality standard washers and specialty assembly hardware and stocks more than 60,000 part numbers. Our lead times are short- we deliver most stocked products within 48 hours. Custom-engineering is available to enable manufacture of new parts to your exact specifications.

Proudly Made in America Since 1928

Founded in 1928 by Wensil Seastrom in his garage in Glendale, California, Seastrom has been a family-owned business that has grown to become a multi-faceted manufacturer of high-quality precision washers and assembly hardware. We are also proud to be an approved supplier for most major aerospace, military, and commercial manufacturers.

State-of-the-Art Facilities

We operate out of a 100,000-square-foot facility that contains:
• A full in-house engineering department
• A tool and die department
• A quality control department
• Custom manufacturing capabilities

View all of our standard washers and hardware online or request a quote for custom washers or hardware products.