Drywall Screws Finish Phosphate Material Steel Head Type Trim Drive Square Screw Size #6 Fastener Length 1 5/8 in Head Width 0.232 in Head Height 0.157 in Drive Size #1 Pack Size Bulk System of Measurement Inch Maximum Head Height 0.156 in Application Wood Trim and Base Board over Drywall to Steel Studs Dimensional Standards ASTM C1513 Package Quantity 5000