3a thread class right-hand 0.500" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
Used on hawkeye e-2c, eagle f-15, harrier. 3a thread class right-hand knurled no. 1 head style 32 thread quantity per inch anodize head surface treated unf thread series
3a thread class right-hand 0.372" thread length flat countersunk head style 0.615" grip length 28 thread quantity per inch navy special project passivate surface treated unjf thread series
3a thread class right-hand 0.720" thread length dished hexagon head style 1.990" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.343" thread length hexagon head style 4.484" grip length 12 thread quantity per inch passivate surface treated unf thread series
3a thread class 0.360" thread length dee chamfer head style 20 thread quantity per inch self locking per mil-f-18240 chromate surface treated unc thread series
Used on 26vortac equipment. functional desc: thumb screw; ref data & literature: 2A1MP7, ti 6820.2, fa 9996/2, vortac, vor/dme, vor equipment, vol 8, sec 8, pg 8-117