3a thread class right-hand 0.593" thread length fillister head style 0.078" hole diameter 28 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.266" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.167" thread length fillister head style 0.031" hole diameter 40 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.297" thread length flat countersunk head style 24 thread quantity per inch plunger operated spring loaded retaining balls passivate surface treated unf thread series
2a thread class right-hand 0.183" thread length knurled no. 2 head style 32 thread quantity per inch thd end cone point passivate surface treated unc thread series