# 6-9 X 1 5/8" Phillips Bugle Head Drywall Screw Coarse Thread Black Phosphate/Wax
Standard Garden Variety Drywall Screw works in very soft material.
# 8-9 X 2" Square/Phillips Flat Head With Nibs Under Head Coarse Thread Double Type17 Zinc Plated Screws
# 8-11 X 2 1/4" Phillips Flat Head With Nibs under Head Coarse Thread Type 17 Zinc Plated Screws
# 8-11 X 1 1/4" Square/Phillips Flat Head With Nibs Under Head Coarse Thread Type 17 Zinc Plated Screws
# 6-13 X 7/16" Phillips Flat Undercut Head Coarse Thread Type 17 Zinc Plated Screws