9/16-12 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated

They are actually stronger than most metal and chemical anchors

1/2 x 16 Hex Lag Screw Hot Dipped Galvanized

7/8-9 x 6 Simpson Wedge Anchor 304 SS (5)

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

21/64 Cobalt Heavy Duty Jobber Drill Bit (6) Gutter Screws 9/16-12 x 6 Grade 821 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.