Machine Screw Head Type Flat Material PEEK Finish Plain Drive Slotted Thread Size M4 Fastener Length 20 mm Head Width 9.4 mm Head Height 2.7 mm Tensile Strength 26 800 psi Dimensional Standards ISO 9001 2008 Pack Size Small Type Standard Machine Screw System of Measurement Metric Thread Style Fully Threaded Thread Type Coarse Package Quantity 10