160 x 3 screws are designed to last

1/2-20 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (200)

3/8-16 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

Its 7/8" hole diameter and 5" usable length make it an ideal choice for a variety of maintenance and construction jobs

9/16-12 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

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.