Used on los angeles class ssn (688);level 1 / subsafe. 3a thread class right-hand 1.096" thread length flat chamfer head style 13 thread quantity per inch unc thread series
Used on c-017acft. 3a thread class right-hand 0.486" thread length flat countersunk head style 0.685" grip length 24 thread quantity per inch passivate surface treated unjf thread series