DB Building Fasteners is a third generation family owned business headquartered in Ontario, California. DB has been in business for 30+ years specializing in hardware and accessories for the metal roofing and metal building industries. We are a direct importer of self-drilling and self-piercing screws and distribute domestically manufactured fasteners as well. In-house we exact paint match fasteners and manufacture foam closures for precision quality control and quick turn-around times. We also distribute a wide range of sealants, concrete anchors, structural bolts, bracing hardware, and other accessories to better serve our customers.