DB Building Fasteners

SELFDRILLERS.COM is brought to you by DB Building Fasteners, Incorporated.


 DB started in 1992 as a division of Duncan Bolt Company. Then, in 1997 DB incorported into its own company and in 2005 moved to its present 20,000 square foot warehouse in Ontario, California. DB specializes in domestic and imported self drilling fasteners and structural A325 and TC Bolts for the metal building / metal roofing industries. We carry self drilling fasteners from Elco, ITW Buildex Teks®, and our own DB import self drilling fasteners. We have a full assortment of concrete anchors from Powers including wedge anchors and wedge bolts.


DB now produces closure in house at our Ontario California warehouse. DB not only stamps closure in house but also can apply adhesive to the closure as well. You have a special closure need, not a problem at DB!  DB also stocks accessories for the metal building / metal roofing industries. Including S-5! Colorgard and PV Kits, Masterflash Pipe Flashing, Camcar Fab Lok’s, Trufast Roofing Fasteners, Dewalt Power Tools, Lift Safety and many other accessories. Please click on our Brochures page to see all of our latest products. We pride ourselves in providing hard to find fasteners and accessories and the best customer service possible.