The flathead also uses a Torx drive system that accepts a wider range of bit sizes

3/4-10 x 22 A307A Hex Bolt Hot Dipped Galvanized

1 1/4 x 15 ITM SDS Max X-Cutter Hammer Drill Bit

holding up to 215 lbs in uncracked concrete and up to 280 lbs

This 5/8-11 x 4 1/4 A325 Type 1 Heavy Hex Bolt Plain - Bulk Keg (130) is a great choice for heavy-duty applications

1 1/8-7 x 4 1/4 A325 Type 1 Heavy Hex Bolt Plain Domestic (USA) - Bulk Keg (125) 9/16-18 Grade 8 Hex Cap Screws Yellow Zinc Plated The flathead also uses aThis 1 1 8 7 x 4 1 4 A325 Type 1 Heavy Hex Bolt is domestically manufactured in the USA. This pack contains 125 high strength bolts, providing you with reliable and secure fastening solutions.