Socket Set Screw, Head Type Headless, Point Type Knurled Cup, System of Measurement Metric, Thread Size M8-1.25 mm, Overall Length 20 mm, Drive Type Socket, Drive Size 4 mm, Material Alloy Steel, Finish Black Oxide, Pack Size Small Pack, Dimensional Standards DIN 916, Head Height Not Applicable, Maximum Head Height Not Applicable, Maximum Temperature 302 Degrees F, Minimum Head Height Not Applicable, Minimum Temperature -58 Degrees F, Package Quantity 100