2a thread class right-hand 3.000" thread length hexagon head style 6.000" grip length 7 thread quantity per inch dichromate surface treated unrc thread series
3a thread class right-hand 1.314" thread length double hexagon extended washer head style 6.185" grip length 16 thread quantity per inch unjf thread series
3a thread class right-hand 0.936" thread length double hexagon extended washer head style 0.502" grip length 24 thread quantity per inch unjf thread series
3a thread class right-hand 0.544" thread length hexagon head style 0.673" grip length 28 thread quantity per inch added a to dash number for undrilled bolt. passivate surface treated unjf thread series