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