a new plating that is 7x more corrosion resistant than standard zinc plating

which can be any number you see fit for your job

3 USS Flat Washer Zinc Plated

464 inches

11/32 Heavy Duty Jobber Drill Bit (6) Phillips Flat Machine Screws Type F Zinc Plated a new plating that is11 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.