Brand Name: ACE Head Type: Flat Product Type: Cement Board Screws Callout Size: Type #2 Screw Length: 1 5/8 in. Finish: Gray Ceramic Number in Package: 145 pc. Drive Type: #2 Phillips Packaging Type: Boxed Thread Type: Coarse 1000 hour Gray ceramic coat. These outdoor wood screws provide superior rust and corrosion protection.