Socket Set Screw, Head Type Headless, Point Type Flat, System of Measurement Inch, Thread Size 1/2 In.-13, Overall Length 3/8 in, Drive Type Socket, Drive Size 1/4 in, Material Alloy Steel, Finish Zinc Plated, Pack Size Small Pack, Decimal Equivalent 0.25 in, Dimensional Standards ASME B18.3, 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 50