Socket Set Screw Head Type Square Point Type Cup System of Measurement Inch Thread Size 3/8 In.-16 Overall Length 3 1/2 in Drive Type External Square Drive Size 3/8 in Material Steel Finish Plain Pack Size Small Pack Dimensional Standards ASME B18.6.2 Head Height 0.293 in Head Width 3/8 in Maximum Head Height 0.293 in Maximum Head Width 0.375 in Maximum Temperature 302 Degrees F Minimum Head Height 0.27 in Minimum Head Width 0.362 in Minimum Temperature -58 Degrees F