Thread Cutting Screw Finish Zinc Plated Material Steel Head Style Pan Drive Phillips Thread Size 1/4 In.-20 Fastener Length 1 in Head Type Pan Head and Washer Height 0.153 in Drive Size #3 Dimensional Standards ASME B18.6.3 Maximum Head Width 0.477 in Minimum Head Width 0.442 in System of Measurement Inch Head Height 0.153 in Head Width 0.477 in Package Quantity 25