The #12 x 4 1/2 size provides sturdy fastening in decks

9/16 x 8 Ship Auger Wood Bit

1-8 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated

1/4-20 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (450)

#10 x 1 Simpson Flat-Head Deck-Drive™ DWP Wood Screws 305 Stainless Steel (T25) - Box (4500) 3/8 Cotter Pins 18-8 Stainless Steel The #12 x 4 1/2Simpson Deck Drive DWP Wood Screws are designed specifically for outdoor wood construction projects. Made with 305 stainless steel for long lasting resistance against corrosion, these #10 x 1 screws feature a flat head and T25 Torx drive for fast, secure installation. Each box includes 4500 screws.