3a thread class right-hand 0.371" thread length spline drive shear head head style 1.240" grip length 24 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.500" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated item must comply with requirements of defense supply center philadelphia production standard PO0302nrp unf thread series
3a thread class right-hand 0.599" thread length spline drive shear head head style 1.865" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.599" thread length spline drive shear head head style 2.709" grip length 20 thread quantity per inch passivate surface treated unjf thread series
Used on f/a-18 e/f aircraft. 3a thread class right-hand straight pan head style 0.375" grip length 28 thread quantity per inch (navy) pin-rivet, threaded, shear, protruding head, hex point drive, for sealant application passivate surface treated unjf thread series
3a thread class right-hand straight pan head style 1.062" grip length 32 thread quantity per inch (navy) pin - rivet, threaded, shear, protruding head, hex point drive anodize surface treated unjf thread series
Used on f18 e/f. 3a thread class right-hand 0.620" grip length 28 thread quantity per inch pin, rivet, threaded-tension, 100 degree c sunk head, hex point drive passivate surface treated unjf thread series
3a thread class right-hand straight pan head style 1.500" grip length 32 thread quantity per inch (navy) pin - rivet, threaded, shear, protruding head, hex point drive anodize surface treated unjf thread series
Used on f18 e/f. 3a thread class right-hand 0.399" thread length spline extended washer head style 0.250" grip length 32 thread quantity per inch passivate surface treated unjf thread series
Used on f18 e/f. 3a thread class right-hand 0.453" thread length spline drive shear head head style 2.000" grip length 20 thread quantity per inch bolt-close tolerance, spline drive, cres (125 ksi fsu) drilled, short thread passivate surface treated unjf thread series