2a thread class right-hand 1.250" thread length square head style 5.750" grip length 16 thread quantity per inch cadmium or zinc surface treated unc thread series
2a thread class right-hand 0.684" thread length flat countersunk head style 24 thread quantity per inch cadmium or zinc screw surface treated unf thread series
2a thread class right-hand 0.375" thread length fillister head style 20 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 0.359" thread length round head style 32 thread quantity per inch serrated steel core thru longitudinal axis unc thread series