2a thread class right-hand 1.600" thread length 32 thread quantity per inch 0.030 in. by 45.0 deg chamfer on both ends cadmium or zinc surface treated acute angle bend unf thread series
3a thread class right-hand 0.980" thread length hexagon head style 0.070" hole diameter 0.380" grip length 18 thread quantity per inch unf thread series
2a thread class right-hand 0.594" thread length flat countersunk head style 13 thread quantity per inch cadmium or zinc screw surface treated unc thread series