2a thread class right-hand 1.500" thread length hexagon head style 11 thread quantity per inch 2nd reply min tensile strength 64000 psi phosphate surface treated unc thread series
2a thread class right-hand 2.000" thread length flat countersunk head style 28 thread quantity per inch cadmium or zinc screw surface treated unf thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 13 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 1.846" thread length flat countersunk head style 13 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 13 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 1.250" thread length square head style 4.250" grip length 13 thread quantity per inch cadmium or zinc surface treated unc thread series