2a thread class right-hand 1.320" thread length hexagon head style 0.180" grip length 16 thread quantity per inch passivate surface treated unc thread series
Used on spinner,lp shaft,f112wr100 engine. 3a thread class right-hand 1.015" thread length hexagon countersunk head style 28 thread quantity per inch countersunk head 0.480/0.531 in. diameter unjf thread series
Used on afterbody section,torpedo mk50. 3a thread class right-hand 0.360" thread length hexagon extended washer head style 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.865" thread length double hexagon extended washer head style 0.088" grip length 24 thread quantity per inch unjf thread series
Used on f100pw0229 engine. 3a thread class right-hand 0.440" thread length double hexagon w/hole head style 0.042" hole diameter 32 thread quantity per inch center hole in top of head 0.090/0.110 in. dia x 0.128 in. nom deep unjf thread series