Founded in 1905 as a maker of friction hinges and furniture hardware, Keystone Friction Hinge Co. is a privately held Pennsylvania manufacturer with an 88,000-square-foot facility in South Williamsport. It now specializes in contract metal stamping, CNC machining, and assembly, and has supplied industrial customers for decades. The company describes its work as progressing from concept and prototyping through full production.
ISO 9001:2015
Keystone Forging CompanyFounded in 1893, Keystone Forging Company is a Pennsylvania manufacturer of closed-die forgings, continuing a local blacksmithing tradition that predates its founding. It produces custom forged parts and provides in-house tooling design and secondary operations, serving customers across a broad range of industries.NORTHUMBERLAND, PA
Keystone MetalsKeystone Metals is a Pittsburgh metalworking and fabrication company that emerged in 1989. It makes custom metalwork for buildings, including specialty staircases and railings, and says its work can be found throughout the Tri-State region and beyond. The company describes its history as built on generations of expertise and experience.PITTSBURGH, PA
Penn Metal Stamping, IncPenn Metal Stamping is a small Pennsylvania manufacturer known for keeping its toolmaking close to the production floor: nearly all of the tooling and fixturing it uses is designed and built in-house. From its 23,000-square-foot facility in northwestern Pennsylvania, the company produces precision stamped parts and assemblies for customers in North America and abroad, and it is ISO 9001 registered.KERSEY, PA
E.H. SchwabFounded in 1929, E.H. Schwab is a family-owned Pennsylvania contract manufacturer specializing in precision metal spinning and forming. It produces custom parts from design through prototype and full production, serving a range of industries with a history of manufacturing thousands of part designs.TURTLE CREEK, PA