3a thread class right-hand 0.312" thread length flat countersunk undercut head style 28 thread quantity per inch cadmium screw surface treated concentric hole in head 0.1596 in. min dia, 0.1675 in. max dia 0.190 in. thd dia, 32 threads per in. jf class 3b, countersunk 90 degrees, 0.156 in. min dia, 0.187 in. max dia; 0.310 in. min length, 0.507 in. length unjf thread series
2a thread class right-hand 0.595" thread length flat chamfer head style 32 thread quantity per inch screw, machine oxide screw surface treated unc thread series
2a thread class right-hand 0.678" thread length 32 thread quantity per inch navy special project color black neophrene cap on head per mil-r-3065 type s class sb grade 410 unc thread series
2a thread class right-hand 0.947" thread length binding head style 32 thread quantity per inch navy special project cadmium screw surface treated unc thread series
2a thread class right-hand 0.107" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 1.761" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 1.196" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 1.446" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unjf thread series
2a thread class right-hand 0.378" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.380" thread length round extended washer head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
