2a thread class right-hand 2.450" thread length headless (setscrew) head style 0.547" hole diameter 18 thread quantity per inch passivate surface treated unc thread series
Used on 1680 airplane final ssy. 3a thread class right-hand 1.681" thread length double hexagon w/hole head style 0.062" hole diameter 1.562" grip length 14 thread quantity per inch bplt, special-power plant, eng mount, upper passivate surface treated unjf thread series
Used on 1680 airplane final assy. 3a thread class right-hand 1.525" thread length double hexagon w/hole head style 0.062" hole diameter 2.890" grip length 14 thread quantity per inch bolt.special-power plant, eng mount, upper passivate surface treated unjf thread series
Used on f/a-18e/f aircraft. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style identification marks: indented diamond on head, width .030-.050, length .040-.070
Used on 3990-01-444-5196, concrete mixer, engineering mission module (emm) for the palletized loading system. 2a thread class right-hand 1.000" thread length 20 thread quantity per inch large diameter flush head (elevator) bolts with nuts oxide zinc surface treated
Used on fa-18e, fa18f. 3a thread class right-hand 0.799" thread length hexagon head style 1.688" grip length 16 thread quantity per inch drilled shank, hole diameter 0.141 cadmium surface treated unjf thread series
Used on 3990-01-444-5196, concrete mixer, engineering mission module (emm) for the palletized loading system. 3a thread class 0.500" thread length knurled no. 6 head style 18 thread quantity per inch precision hex socket shoulder screw
