Socket Set Screw Head Type Square Point Type Cup System of Measurement Inch Thread Size 1/2 In.-13 Overall Length 1 1/2 in Drive Type External Square Drive Size 1/2 in Material Stainless Steel Material Grade/Class 18-8 Finish Plain Pack Size Small Pack Decimal Equivalent 0.5 in Dimensional Standards ASME B18.3 Head Width - Package Quantity 5