Cabinet Assembly Screws PN# 189 $162.29 / CS NEW Cabinet Assembly Screws PN# 189 # 9-10 X 2 1/2" Square Flat Head Coarse Thread Black Phosphate/Wax Screws (# 8 Head O.D.) Good Quickscrews. Use in a variety of Soft Woods or Particle board. Upgrade from Drywall Screws. Quantity per CS 50 500 2500 CS Weight 27.15 lb Diameter Length Drive Head Head Color Point Finish Bit #8, #9 2 1/2" Sq#2 Flat Head Sharp Black Sq#2 NEW $162.29 / CS Quantity Add to cart