St Clair Shores Screw Machine Products Manufacturers 20229 E 9 Mile Rd As a manufacturer of precision cold formed and machined parts, Federal Screw Works enters its ninetieth year as one of our industries most recognized and trusted names. Like the company itself, our products are counted on for the automobile industries most critical and demanding cold formed and machined parts applications. St Clair Shores MI Screw Machine Products Manufacturers Federal Screw Works www.federalscrew.com coldform machine grind superfinish federal screw works coldform machine grind superfinish federal screw works Business Reviews Federal Screw Works Testimonials