these 6-Lobe Drive 305 stainless steel screws will provide up to 35% higher withdrawal resistance than traditional screws

1/4-28 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1000)

1 3/4-5 x 6 Socket Cap Screw Alloy

5/8 x 16 Hex Lag Screw Hot Dipped Galvanized

5/8-11 x 4 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (80)

7/16" X 2" nACo Blue Coated Annular Cutter, ANC5-530-210 5/8-11 A325 Type 1 Heavy Hex Bolts Hot Dipped Galvanized Domestic USA these 6-Lobe Drive 305 stainlessnACo Blue Coated Annular Cutters provides prolonged tool life compared to traditional HSS. Cuts difficult materials, including steel, cast iron, heated and stainless steels. m2 High Speed Steel. Cuts only necessary material for fast, efficient, quality hole making. 3 4" Weldon Shank fits most magnetic drill presses. Also called magnetic drills or mag drills. For use with magnetic drill press only. Do not use with a standard hand drill or drill press.