2a thread class right-hand 0.312" thread length knurled no. 4 head style 20 thread quantity per inch cone point 60 deg of angle passivate surface treated unc thread series
3a thread class right-hand 0.479" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.276" thread length flat countersunk head style 0.428" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
Used on b-1 support equipment;aircraft,f-111(fms only);aircraft,eagle f-15;a-10 thunderbolt;f-16 aircraft. 2a thread class right-hand 1.000" thread length flat chamfer head style 20 thread quantity per inch medium knurl, straight line pattern, approximately 26 teeth, 0.125 in. from head, 0.625 in. lg cadmium surface treated unf thread series
3a thread class right-hand 0.270" thread length pan no. 2 head style 0.678" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.750" thread length pan no. 2 head style 20 thread quantity per inch passivate screw surface treated groove under head to accommodate rubber o-rings unc thread series
3a thread class right-hand 0.531" thread length flat countersunk head style 1.062" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.880" thread length headless (setscrew) head style 32 thread quantity per inch groove 0.060 in.lg 0.500 in. fromend unf thread series
2a thread class right-hand 0.063" thread length pan no. 2 head style 48 thread quantity per inch passivate screw surface treated thd relieved groove 0.046 in. w by 0.078 in. dia unc thread series
