Socket Set Screw, Head Type Square, Point Type Cup, System of Measurement Inch, Thread Size 1 In.-8, Overall Length 2 1/2 in, Drive Type External Square, Drive Size 1 in, Material Steel, Finish Plain, Pack Size Small Pack, Dimensional Standards ASME B18.6.2, Head Height 0.774 in, Head Width 1 in, Maximum Head Height 0.774 in, Maximum Head Width 1 in, Maximum Temperature 302 Degrees F, Minimum Head Height 0.726 in, Minimum Head Width 0.974 in, Minimum Temperature -58 Degrees F