3a thread class right-hand 0.481" thread length flat extended washer head style 32 thread quantity per inch breakaway torque 6.5 in. lbs., max torque 60 in. lbs. passivate surface treated unef thread series
2a thread class right-hand 0.440" thread length flat chamfer head style 0.125" hole diameter 24 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.560" thread length flat chamfer head style 0.125" hole diameter 28 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.560" thread length flat chamfer head style 0.125" hole diameter 28 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.115" thread length flat chamfer head style 40 thread quantity per inch color black; straight knurl oxide surface treated unc thread series
2a thread class right-hand 0.359" thread length knurled no. 1 head style 28 thread quantity per inch cone point, 77 to 87 deg angle passivate surface treated unf thread series
3a thread class right-hand 0.330" thread length hexagon head style 32 thread quantity per inch cadmium bearing surface of head surface treated unjc thread series