Used on aircraft, b-1b. 3a thread class right-hand flush countersunk head style 0.830" grip length 32 thread quantity per inch 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
3a thread class right-hand 1.240" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
2a thread class right-hand 0.865" thread length flat chamfer head style 0.029" hole diameter 40 thread quantity per inch cadmium surface treated unc thread series
2a thread class right-hand 0.350" thread length flat countersunk head style 20 thread quantity per inch navy special project passivate screw surface treated unc thread series
3a thread class right-hand 0.460" thread length double hexagon extended washer head style 32 thread quantity per inch navy special project unjf thread series
3a thread class right-hand 0.625" thread length pan no. 2 head style 24 thread quantity per inch self-locking feature achieved by 4 non-symmetrical threads-used with a heat treated alloy steel washer cadmium surface treated unc thread series
undersized oval countersunk head style 0.313" grip length 95000 single pounds per square inch shear strength tail material is titanium-columbium alloy per ams 4982; heat treat annealed
3a thread class right-hand 0.381" thread length oval countersunk head style 1.552" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.345" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch cadmium surface treated unf thread series
