Hex Lag Screws are manufactured from low carbon steel to meet SAE J429 Grade 1

1-8 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated

2 1/2-8 A194 2H Heavy Hex Nut Plain

3/4-10 Drop-In Anchor 303 SS (20)

#4 Heavy Duty Jobber Drill Bit (12) Wedge Anchors Mechanically Galvanized Hex Lag Screws are manufactured#4 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.