160 x 3 screws are designed to last

This 3/4-10 x 4 A325 Type 1 Heavy Hex Bolt Plain Domestic (USA) - Bulk Keg (300) provides superior strength and durability for any job

3/8-24 x 1 3/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

5/8-18 x 1 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (225)

1-7/16" X 2" nACo Blue Coated Annular Cutter, ANC5-530-254 1 1/8-7 A325 Type 1 Heavy Hex Bolts Hot Dipped Galvanized 160 x 3 screws arenACo 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.