3b thread class right-hand flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.125" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength furnished without bolt cadmium expander surface treated unjc thread series
3a thread class right-hand 0.378" thread length pan no. 2 head style 0.240" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.606" thread length double hexagon head style 1.740" grip length 18 thread quantity per inch cetyl alcohol lub nickel surface treated unjf thread series
3a thread class right-hand 0.490" thread length double hexagon head style 1.615" grip length 20 thread quantity per inch cetyl alcohol lub nickel surface treated unjf thread series
3a thread class right-hand 0.490" thread length double hexagon head style 1.490" grip length 20 thread quantity per inch cetyl alcohol lub nickel surface treated unjf thread series
3a thread class right-hand 0.734" thread length undercut hexagon head style 32 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 0.776" thread length double hexagon w/hole head style 24 thread quantity per inch wrenching flat on one end unjf thread series