2a thread class right-hand 0.234" thread length pan no. 2 head style 40 thread quantity per inch thread relieved passivate surface treated unc thread series
3a thread class right-hand 0.355" thread length flat chamfer head style 24 thread quantity per inch nylon locking element in thd oxide surface treated unc thread series
3a thread class right-hand 0.251" thread length flat chamfer head style 28 thread quantity per inch thd relieved groove 0.100 in. min 0.190 in. max dia by 0.089 in. nom w unf thread series
2a thread class right-hand 0.171" thread length flat chamfer head style 56 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.302" thread length flat chamfer head style 20 thread quantity per inch plastic pellet locking feature in threads passivate surface treated unc thread series
2a thread class right-hand oval countersunk head style 28 thread quantity per inch navy special project passivate or oxide surface treated unf thread series
3a thread class right-hand 0.193" thread length flat chamfer head style 0.063" hole diameter 32 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.505" thread length flat countersunk head style 24 thread quantity per inch shank grooved near head to accommodate o ring, furnished with one o ring cadmium surface treated unf thread series
3a thread class right-hand 0.505" thread length flat countersunk head style 24 thread quantity per inch navy special project shank grooved near head to accommodate o ring, furnished with one o ring cadmium surface treated unf thread series
2a thread class right-hand 0.218" thread length flat chamfer head style 40 thread quantity per inch thread releif below shoulder 0.050 to 0.060 in. lg by 0.070 in. dia cadmium surface treated unc thread series
