3a thread class right-hand flush countersunk head style 0.255" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength 1/4 in. dia by 1.000 in. lg stud protruding from top of head cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.251" grip length anodize sleeve or chromate sleeve surface treated
3a thread class right-hand 0.245" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
2a thread class right-hand 1.150" thread length dee chamfer head style 16 thread quantity per inch surface of head is recessed 0.975 in.dia to 0.0625 in. by 0.035 in.deep; outside edge chamfered unf thread series
3a thread class right-hand 0.316" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.406" thread length flat countersunk head style 32 thread quantity per inch navy special project primer screw surface treated unf thread series
3a thread class right-hand 0.291" thread length pan head style 1.678" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.291" thread length pan head style 0.240" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.125" thread length flat chamfer head style 40 thread quantity per inch navy special project cadmium surface treated unc thread series
3a thread class right-hand 0.251" thread length pan head style 0.802" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.375" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.350" thread length flat countersunk head style 4.490" grip length 24 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.350" thread length flat countersunk head style 0.740" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.425" thread length flat countersunk head style 28 thread quantity per inch navy special project cadmium screw surface treated unf thread series
3a thread class right-hand 0.425" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.425" thread length flat countersunk head style 1.552" grip length 28 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.750" thread length hexagon head style 3.000" grip length 14 thread quantity per inch cadmium surface treated uns thread series
3a thread class right-hand 0.425" thread length flat chamfer head style 28 thread quantity per inch navy special project cadmium screw surface treated unf thread series