the Alligator anchors expand to allow for better weight distribution

2 1/4 F436 Flat Washer Plain

19/32 x 6 Reduced Shank Drill Bit (1/2 Shank)

providing adequate bearing surface for nearly all applications

7/8-9 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/8 Cobalt Heavy Duty Jobber Drill Bit (12) Drop-In Anchors 303 Stainless Steel the Alligator anchors expand to1 8 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.