2a thread class right-hand 0.578" thread length flat countersunk head style 24 thread quantity per inch dichromate zinc screw surface treated unf thread series
2a thread class right-hand 0.812" thread length headless (setscrew) head style 28 thread quantity per inch thread at point end chamfered; point flares from end toward thread to o.118 in. min, 0.121 in. max dia for 0.148 in. max lg cadmium surface treated unf thread series
2a thread class right-hand 0.501" thread length hexagon head style 0.250" grip length 16 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.514" thread length hexagon head style 4.110" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.250" grip length 28 thread quantity per inch 15300 double pounds per square inch shear strength nickel surface treated unf thread series
2a thread class right-hand 1.000" thread length hexagon head style 1.000" grip length 18 thread quantity per inch phosphate surface treated unc thread series
