These 5/8-11 x 8 A325 Type 1 Heavy Hex bolts are plain and domestically sourced from the USA in a bulk keg of 175 pieces

1/2-13 x 7 Hex Cap Screw SS 316 (A4)

1-8 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (30)

1/4-28 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

1-1/2" Carbide Tipped Hole Cutter, 1" Depth of Cut, CTH1500 Square Truss-Head Wood Screws 305 Stainless Steel These 5/8-11 x 8 A325Works 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.