3a thread class right-hand 0.615" thread length flat countersunk head style 1.188" grip length 24 thread quantity per inch aluminum surface treated unjf thread series
3a thread class right-hand 1.025" grip length 29200 double pounds per square inch shear strength single shear strength 132000 nickel surface treated unjf thread series
3a thread class right-hand 0.291" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series