and the black oxide finish helps add corrosion resistance

They are designed to secure cladding

These domestic USA bolts come in a bulk keg of 150 for convenient use

3/4-10 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (45)

and outdoor woodworking projects

1-11/16" Carbide Tipped Hole Cutter, 1" Depth of Cut, CTH1687 Reduced Shank Drill Bits Cobalt - 1/2 Shank and the black oxide finishWorks like an annular cutter, except no magnetic drill needed! Carbide tipped hole cutters are good for cutting stainless steel, cast iron, iron, sheet metal and copper. It also works well with abrasive materials like high density resin and metal plates. Has auto ejecting slug and can cut over 300 holes in stainless steel plate. Comes with Pilot Drill and Hex Key.