5/8-11 Drop-In Anchor Zinc Plated (25)

33/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

3/4-16 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

2-4 1/2 A194 2H Heavy Hex Nut Plain

11/64 Cobalt Heavy Duty Jobber Drill Bit (12) 1/2 Hex Lag Screws Hot Dipped Galvanized 5/8-11 Drop-In Anchor Zinc Plated11 64 Cobalt Heavy Duty Jobber Drill Bit . Heavy duty construction made to Type J aircraft specifications. Used for drilling holes in hard, tough materials such as stainless steel, titanium, high temperature and high strength alloys. High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills.