Typical hardness is HRC 24-35 for diameters up to 1 1/2 inches

3/8 x 2 Round Split Drive Anchor Zinc Plated (25)

service pros and even do-it-yourself enthusiasts with fasteners and accessories that meet the highest quality standards and that allow them to do their best work

000 psi for Hot-Dip Galvanized nuts

#32 Heavy Duty Jobber Drill Bit (12) Phillips Flat Machine Screws Type F Zinc Plated Typical hardness is HRC 24-35#32 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.