Used on mv-22 aircraft (v-22 lrip 1 e-nsn isil). 3a thread class right-hand 0.409" thread length hexagon head style 32 thread quantity per inch navy: bolt, shouldered passivate surface treated unjf thread series
Used on tee coupler. 3a thread class right-hand 0.876" thread length double hexagon w/hole head style 0.252" grip length 24 thread quantity per inch unjf thread series
Used on howitzer, 155mm, m777e1. 1.000" thread length unf-2a diameter .250 size/length 1.00 astm a 574 alloy steel astm b 633, type ii sc 4 (color black) plain end = drilled head unf thread series
Used on 155mm howitzer. round head style screw, drive, round head, type u, steel, carbon, cadmium plated size is 0.073 or no. 0, 6 thrds in circumference, recommended hole size=0.067, drill size=51. cadmium surface treated