Suitable for medium alloyed materials and stainless steel

1/2-13 x 3 1/2 Hex Cap Screw SS 316 (A4)

1-8 x 8 Socket Cap Screw Alloy

1-8 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

Material is manufactured to meet or exceed ASTM A563 Grade A

#7 Heavy Duty Jobber Drill Bit (12) 5/8-18 Grade 8 Hex Cap Screws Yellow Zinc Plated Suitable for medium alloyed materials#7 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.