2a thread class right-hand 1.040" thread length hexagon head style 0.386" hole diameter 18 thread quantity per inch 2nd hexagon head 0.500 in. lg passivate surface treated unf thread series
3a thread class right-hand 0.921" thread length hexagon head style 7.172" grip length 18 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 1.250" thread length double hexagon w/hole head style 24 thread quantity per inch cadmium fastener surface treated unf thread series
3a thread class right-hand 0.938" thread length hexagon head style 0.502" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
