you could use a 250-piece bucket of FastenMaster 5” wood screws

#20 Heavy Duty Drill Bit - Stubby Length

5/8-11 x 7 Flat Socket Cap Screw Alloy

Recommended for #6

1/2 x 4 DeWALT Engineered by Powers SCREW-BOLT+™ High Performance Screw Anchor Zinc-Plated (50) Titen HD® Heavy Duty Screw Anchors Mechanically Galvanized you could use a 250-pieceThe 1 2 x 4 DeWALT Engineered by Powers SCREW BOLT+ High Performance Screw Anchor Zinc Plated (50) is an optimal choice for fastening wood, steel, or concrete. Made from zinc plated steel for durability and corrosion resistance, these anchors have an ultimate tensile strength of up to 1800 lbs, offering superior strength and holding power.