They are actually stronger than most metal and chemical anchors because the all plastic plug bonds through friction to concrete

which is often a necessity when working on a wide range of products

9/32 Heavy Duty Jobber Drill Bit

#4 Heavy Duty Drill Bit - Stubby Length

3/4-10 x 1 1/2 Socket Cap Screw 316 Stainless Steel

#50 Heavy Duty Jobber Drill Bit (12) 5/8-11 Hex Cap Screws 18-8 Stainless Steel They are actually stronger than#50 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.