Coarse thread: 68

perfect for heavy-duty construction and engineering needs

This 12-24 x 7/8 MAXISEAL® Hex Washer Head Self Drilling Screw provides superior strength and corrosion resistance

1-8 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (25)

offering increased tensile strength and durability

3-1/16" Carbide Tipped Hole Cutter, 1" Depth of Cut, CTH3062 STRONG-BOLT 2 Cracked Concrete Wedge Anchors Zinc Plated Coarse thread: 68Works 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.