Harrison & Bonini Since 1946
Fastening Hardware Since 1946
In California: 415-861-8300 or Toll Free: 866-442-2658
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Since 1946, Harrison & Bonini has adhered to one principle: the only way to do business is to offer unparalleled customer service. We’ve also gained quite a reputation for stocking and finding special fasteners and truly "hard to find" products for our customers.

Our company sells a wide selection of standard bolts, nuts, washers and screws and we have increased our inventories in Hot Dip Galvanized Fasteners, Stainless Self-Drilling screws and “Unistrut” related products. The addition of strut products and accessories are in response to demands from the Solar and Commercial building trades.

Harrison & Bonini has also partnered with manufacturers of Tie Rods, Anchor Bolts, and Special Application Threaded Rods in various materials including Standard Steels, High Strength Alloys, and Stainless Steel. We also have extended our line to include: Dril-Flex Structural Self-Drilling Screws, Aggre-Gator, Bi-Metal concrete screws. Both of these products are US Made.

Along with the vast range of fasteners, we have fantastic selection of Domestic made Drills, Taps, and Reamers. We also have speciality drills that are ideal for drilling Stainless Steel, and concrete.

CT Carbide Tipped Hole Cutters
Outlast Holesaws, Step Drills S&D Drills, Ultra fast way to cut smooth holes in Steel, Stainless Steel, Cast Iron, & Aluminum.
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  Dril-Flex Structual Self-Drilling Screws with Stalgard Coating
Dual Heat Treated Screws Resistant to Hydrogen Embrittlement. Dril-Flex screws are Stalgard coated to act as a barrier coating.
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  Aggre-Gator Bi-Metal concrete Screws
Unmatched Corrosion Resistance. Galvanic Barrier Coating. Ideal for dissimilar Metal Applications, including Aluminum. Hardened Steel tip and lead threads, fused to a 300 Series Stainless shank and head.
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