Parts › Floor Screw Image 1 of 1 Floor Screw $0.20 Screw for treated wood, 1/4" x 2 1/4" self-tap (use 7/32 to drill pilot)Reference #386405 Quantity: Add To Cart Added! Screw for treated wood, 1/4" x 2 1/4" self-tap (use 7/32 to drill pilot)Reference #386405