3a thread class right-hand 0.276" thread length flat countersunk head style 1.428" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.500" grip length 95000 single pounds per square inch shear strength grit blast top of head, color code black unjf thread series
3a thread class right-hand 0.562" grip length 95000 single pounds per square inch shear strength grit blast top of head: color coded black unjf thread series
3a thread class right-hand flush countersunk head style 0.938" grip length 95000 single pounds per square inch shear strength grit blast top of head, color coded black unjf thread series
3a thread class right-hand 0.375" grip length 95000 single pounds per square inch shear strength color coded black, , grit blast top of head unjf thread series
3a thread class right-hand 0.625" grip length 95000 single pounds per square inch shear strength color coded black: grit blast top of head unjf thread series
3a thread class right-hand 1.625" thread length hexagon head style 0.547" grip length 24 thread quantity per inch bolt, machine, aircraft ultimate tensile strength at root dia. for steel 6500 pounds unf thread series
3a thread class right-hand 0.312" thread length flat countersunk head style 0.500" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.606" thread length dished hexagon head style 0.428" grip length 28 thread quantity per inch passivate surface treated unjf thread series