3a thread class left-hand flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.312" grip length 40 thread quantity per inch cadmium bolt surface treated unf thread series
3a thread class right-hand 0.251" thread length flat countersunk head style 0.552" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.251" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.125" thread length headless (setscrew) head style 40 thread quantity per inch nylon insert in point extending 0.031 in. porm 0.015 in. lg cadmium surface treated unc thread series
2a thread class right-hand 0.085" thread length flat countersunk undercut head style 64 thread quantity per inch nickel screw surface treated unf thread series
3a thread class right-hand 0.400" thread length pan head style 28 thread quantity per inch navy special project cadmium screw surface treated unf thread series
3a thread class right-hand 0.589" thread length hexagon head style 0.070" hole diameter 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.306" thread length crowned hexagon head style 1.562" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.305" thread length crowned hexagon head style 1.438" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 1.191" thread length double hexagon w/hole head style 12 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.093" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series
