3/4-10 x 10 A307 Grade A Carriage Bolt Zinc Plated

1/4-20 x 4 Combo Flat Sleeve Anchor Zinc Plated (50)

These are fully threaded hex cap screws (i

They are actually stronger than most metal and chemical anchors because the all plastic plug bonds through friction to concrete

9/32 Cobalt Heavy Duty Jobber Drill Bit (12) 1-8 Grade 8 Hex Cap Screws Yellow Zinc Plated 3/4-10 x 10 A307 Grade9 32 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.