3a thread class right-hand 0.490" thread length headless (setscrew) head style 32 thread quantity per inch passivate fastener surface treated unc thread series
2a thread class right-hand 0.132" thread length fillister head style 56 thread quantity per inch navy special project passivate screw surface treated unc thread series
3a thread class right-hand 0.313" thread length flat countersunk head style 0.240" grip length 32 thread quantity per inch aluminum surface treated unjf thread series
2a thread class right-hand 0.658" thread length button head style 32 thread quantity per inch color semi-dull black enamel paint surface treated unc thread series
3a thread class right-hand 0.170" thread length flat chamfer head style 0.033" hole diameter 40 thread quantity per inch passivate surface treated unrc thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 4.915" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.428" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series
3a thread class left-hand flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.751" grip length 40 thread quantity per inch 0.2068 in. second shank diameter cadmium bolt surface treated unf thread series
3a thread class right-hand 0.372" thread length flat countersunk head style 28 thread quantity per inch internal hex on threaded end 0.0947 in. to 0.0967 in. wide passivate surface treated unjf thread series
