Since 1938 TSP Manufacturing has been a leading manufacturer of fasteners and bolts. We are committed to creating the highest quality products and exceeding all expectations of our customers. Since 1997 TSP Manufacturing has been ISO 9002 certified. TSP has a wide variety of materials that are used for fasteners and bolts including but not limited to stainless steel, pH grades, bronze, and plastics. Contact us today to learn how we can help supply your company.