3a thread class right-hand 0.880" thread length dished hexagon head style 18 thread quantity per inch end of bolt is reduced in dia. to 0.472 in, 0.250 in lg. passivate surface treated unf thread series
3a thread class right-hand 0.407" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
Used on B1-B. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.781" grip length blind, bolt aluminum body surface treated
Used on B1-B. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.281" grip length 112000 single pounds per square inch shear strength blind, bolt aluminum mechanical lock surface treated
Used on B-1B. 3a thread class right-hand flush countersunk head style 0.760" grip length 20 thread quantity per inch 125000 single pounds per square inch shear strength pin, hi lock passivate surface treated unjf thread series
Used on B-1B. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.469" grip length namebolt, blind aluminum sleeve surface treated
2a thread class right-hand 0.590" thread length flat chamfer head style 0.340" hole diameter 24 thread quantity per inch navy special project passivate screw surface treated unf thread series
3a thread class right-hand 0.670" thread length flat chamfer head style 40 thread quantity per inch navy special project oxide surface treated unrc thread series
