3/4-10 x 13 A307 Grade A Carriage Bolt HDG

1/2-13 x 7 Hex Cap Screw SS 18-8 (A2)

7/16 Cobalt Heavy Duty Jobber Drill Bit

1008-1010 for diameters up to 1 inch (cold-formed) and 1045 steel for diameters over 1 inch (hot-formed)

#30 Heavy Duty Jobber Drill Bit (12) Acorn Sleeve Anchors Zinc Plated 3/4-10 x 13 A307 Grade#30 Heavy Duty Jobber Drill Bit . Web construction is heavier than general purpose construction making it particularly suitable for cotter pin hole drilling and cross hole drilling in head of bolts. The heavy construction affords efficient drilling in stainless steel and other hard materials. The split point reduces the thrust requirements and minimizes walking.