3a thread class right-hand 1.750" thread length flat chamfer head style 18 thread quantity per inch with suplementary treatment for corrosion resistance phosphate manganese surface treated unrf thread series
2a thread class right-hand 0.480" thread length flat chamfer head style 28 thread quantity per inch navy special project passivate surface treated unf thread series
3a thread class right-hand flush countersunk head style 0.557" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.495" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.433" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.370" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.307" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.245" grip length 28 thread quantity per inch 10490 double pounds per square inch shear strength unjf thread series
2a thread class right-hand 0.190" thread length pan head style 32 thread quantity per inch navy special project passivate surface treated unc thread series