3a thread class right-hand 0.670" thread length hexagon head style 2.562" grip length 20 thread quantity per inch spindle passivate spring surface treated unjf thread series
3a thread class right-hand 0.397" thread length spline drive shear head head style 0.041" hole diameter 0.552" grip length 28 thread quantity per inch 145, 000 p.s.i. min. shear passivate surface treated unjf thread series
3a thread class right-hand 0.649" thread length spline drive shear head head style 0.726" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.422" thread length crowned hexagon head style 1.375" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.528" thread length hexagon head style 0.188" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.276" thread length hexagon head style 1.740" grip length 28 thread quantity per inch chromium grip surface treated unjf thread series
3a thread class right-hand 0.453" thread length dished hexagon head style 1.490" grip length 20 thread quantity per inch two holes in threads 90 degrees apart cadmium threads surface treated unf thread series