3a thread class right-hand 0.370" thread length round w/wrench flats head style 20 thread quantity per inch zinc chromate coating in concentric hole cadmium threads or chromium threads surface treated counterbore unthreaded unf thread series
2a thread class right-hand 3.500" thread length 20 thread quantity per inch 1 wing nut with 0.062 in. dia hole for lockwire furnished item, after assembly of wing nut thds to be pinched to prevent loss of wing nut paint grip surface treated round bend unc thread series
Used on aircraft hercules c-130 and ac-130, j, mc-130. 2a thread class right-hand 0.359" thread length flat chamfer head style 56 thread quantity per inch housing, handle cadmium screw surface treated drawing 360916, housing handle, outside operating crew door; material is 356-T6 aluminum alloy casting; round counterbore diameter is 1.375"; bore hole is 1.125" ; center to top is 1.45"; castomg tp; eranmce is 0.03"; edge radii is 0.06" unc thread series
3a thread class right-hand 0.400" thread length flat countersunk head style 0.490" grip length 28 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.121" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.375" thread length flat chamfer head style 28 thread quantity per inch navy special project cadmium threads surface treated unjf thread series
2a thread class right-hand 0.500" thread length square head style 24 thread quantity per inch counterbore at thd end 0.247 in. min 0.253 in. max dia 0.200 in. deep cadmium surface treated concentric hole unthreaded unf thread series
2a thread class right-hand 0.875" thread length hexagon head style 0.850" grip length 18 thread quantity per inch passivate surface treated unc thread series
2a thread class right-hand 1.000" thread length flat chamfer head style 20 thread quantity per inch body undercut 0.4219 in.dia, 0.125 in.lg unf thread series
