3a thread class right-hand 1.755" grip length 24 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.260" thread length 32 thread quantity per inch undercut 0.010 in. min, 0.020 in. max w nickel surface treated unjc thread series
3a thread class right-hand 0.400" thread length dished hexagon head style 2.990" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.178" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated black oxide coated iaw mil-c-13924, CL4; grove on shank 0.277 in. from top of head 0.018 in. min unc thread series
3a thread class right-hand 0.491" thread length double hexagon w/hole head style 28 thread quantity per inch color black oxide surface treated unf thread series