3a thread class right-hand 0.630" thread length double hexagon extended washer head style 20 thread quantity per inch cadmium surface treated unc thread series
Used on intercon device a-4m. 2a thread class right-hand 0.637" thread length hexagon head style 13 thread quantity per inch navy special project cable attachment at one end of bolt unc thread series
Used on antenna gp oe-339(v)-1/tpq-37. 3a thread class right-hand 0.190" thread length hexagon head style 0.842" grip length 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.875" thread length hexagon head style 0.440" grip length 24 thread quantity per inch navy special project flatten end of hex head 0.173 in. min 0.178 in. max lg from center of head unjf thread series
2a thread class right-hand 0.653" thread length hexagon extended washer head style 24 thread quantity per inch phosphate fastener surface treated unrf thread series
Used on BOLTS. 3a thread class right-hand 3.266" thread length hexagon extended washer head style 9 thread quantity per inch cadmium surface treated unc thread series
Used on upper support bar-steam catapults. 3a thread class right-hand 2.766" thread length double hexagon extended washer head style 9 thread quantity per inch unc thread series
3a thread class right-hand 1.094" thread length hexagon head style 4.046" grip length 16 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 4.250" thread length hexagon head style 5.250" grip length 4.5 thread quantity per inch navy special project zinc surface treated unc thread series
2a thread class right-hand 1.750" thread length hexagon head style 3.250" grip length 8 thread quantity per inch zinc surface treated unc thread series
