3a thread class right-hand 0.338" thread length oval countersunk head style 1.062" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.500" thread length knurled no. 5 head style 20 thread quantity per inch item must comply with requirements of defense supply center philadelphiaproduction standard no. PO0387nrp unc thread series
3a thread class right-hand 2.800" thread length hexagon head style 0.045" hole diameter 28 thread quantity per inch cadmium surface treated unjf thread series