5/8-11 x 5 Hex Cap Screw SS 18-8 (A2)

3/4 x 6 Hex Lag Screw Hot Dipped Galvanized

1/2 x 18 Hex Lag Screw Hot Dipped Galvanized

but they’re also vibration- and shock-resistant

19/64 Heavy Duty Jobber Drill Bit (12) 1/2-13 Grade 8 Hex Cap Screws Yellow Zinc Plated 5/8-11 x 5 Hex Cap19 64 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.