Hardness is Rockwell C32 maximum and proof load is 72

Class 3A full formed thread

Open-end button head rivets offer the broadest selection of sizes available

7/8-9 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated

Commonly used in naval construction and power plant applications

13/32 Heavy Duty Jobber Drill Bit (6) M24-3.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 Hardness is Rockwell C32 maximum13 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.