3a thread class right-hand 0.615" thread length double hexagon w/hole head style 0.047" hole diameter 36 thread quantity per inch head holes countersunk 90 degreesto 0.060 diameter unjf thread series
2a thread class right-hand 0.157" thread length flat chamfer head style 32 thread quantity per inch undercut between head oxide surface treated unc thread series
3a thread class right-hand 0.187" thread length pan no. 2 head style 0.036" hole diameter 40 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.380" thread length flat countersunk head style 0.615" grip length 32 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 1.281" thread length hexagon head style 12 thread quantity per inch 0.156 in. wide by 1.016 in. dia thread relief, 0.094 in. wide by 1.188 in. dia undercut under head, no. 63 finish on bearing surface of shoulder phosphate surface treated unf thread series
2a thread class right-hand 1.281" thread length hexagon head style 12 thread quantity per inch 0.156 in. wide by 1.016 in. dia thread relief, 0.094 in. wide by 1.188 in. dia undercut under head, no. 63 finish on bearing surface of shoulder phosphate surface treated unf thread series
