3a thread class right-hand 0.402" thread length flat countersunk undercut head style 28 thread quantity per inch navy special project cadmium screw surface treated concentric hole 0.1596 in. min dia, 0.1675 in. max dia, 0.10 in. thd dia 32 thds per in., countersunk 90 degrees 0.156 in. min dia, 0.187 in. max dia 0.353 in. min; 0.425 in. max length unjf thread series
3a thread class right-hand 0.312" thread length flat countersunk undercut head style 28 thread quantity per inch cadmium screw surface treated jconcentric hole in head 0.1596 in. min dia, 0.1675 in. max dia, 0.19o in.thd dia, 32 thds per in., jf, class 3b, countersunk 90 degrees; 0.156 in. min dia, 0.187 in. max dia; 0.485 in. min length, 0.507 in. max length unjf thread series
3a thread class right-hand 0.312" thread length flat countersunk undercut head style 28 thread quantity per inch navy special project chromate screw surface treated fconcentric hole in head 0.1596 in. min, 0.1675 in. max dia; 0.190 in. thd dia, 32 threads per in. jf, class 3b; countersunk 90 degrees, 0.156 in. min 0.187 in max dia; 0.435 in. min, 0.600 in. max length unjf thread series
3a thread class right-hand 0.096" thread length pan head style 32 thread quantity per inch cadmium screw surface treated furnished with nylon booth type washer color black unc thread series
3a thread class right-hand 0.672" thread length dished hexagon head style 32 thread quantity per inch passivate screw surface treated unjf thread series
3a thread class right-hand 0.252" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated internal drive ribbed unjc thread series