2a thread class right-hand 0.200" thread length pan no. 2 head style 32 thread quantity per inch below head THREADED0.050 in. length passivate surface treated unc thread series
3a thread class right-hand 0.297" thread length flat countersunk head style 32 thread quantity per inch oxide fastener surface treated unf thread series
Used on aircraft, eagle f-15;aircraft, harrier av-8b. 3a thread class right-hand 0.251" thread length flat countersunk head style 0.240" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.625" thread length flat chamfer head style 0.033" hole diameter 32 thread quantity per inch passivate surface treated unrc thread series