Since the anchor is pre-expanded

1/2-13 x 10 Grade 5 Hex Cap Screw Zinc Plated

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

8-18 x 3 Phillips Drywall Self Drill Screw Zinc Plated (2000)

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 Since the anchor is pre-expanded9 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.