'Set Screw, Steel, Finish Plain, Thread Size 1/2-13, Point Type Cup, Point Material Steel, Drive Type Square Head, Overall Length 2 In., Head Width 0.484 In. to 0.500 In., Head Height 0.361 In. to 0.389 In., Temp. Range (F) -58 Degrees to 302 Degrees , Class 3A, Rockwell Hardness HRC45 to HRC53, Meets ASME B18.6.2, Package Quantity 10'