Ideal for drilling in low and medium tensile strength materials

Hot-Dip Galvanized material will meet or exceed ASTM A153

3/4-16 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

the threads and nylon form a tight

Typical hardness is HRB 68 - HRC 32

7/16 Heavy Duty Jobber Drill Bit (6) 3/4-16 Grade 5 Hex Cap Screws Zinc Plated Ideal for drilling in low7 16 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.