Socket Set Screw Head Type Square System of Measurement Metric Thread Size M20-2.50 mm Overall Length 60 mm Fastener Length 60 mm Drive Type External Square Material Steel Material Grade/Class Class 8 Finish Black Oxide Pack Size Small Pack Dimensional Standards DIN 479 Head Height 20 mm Head Width 22 mm Manufacturer Location Globally Sourced Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Package Quantity 10