2a thread class right-hand knurled no. 1 head style 32 thread quantity per inch item comes with a stand-off 0.281 in. dia, 0.375 in. length; also with a retainer internally threaded 6-32 unc-2b by 0.300 in. long passivate surface treated unc thread series
Used on c-141 aircraft. 3a thread class right-hand 1.490" grip length 24 thread quantity per inch w btwn flats 0.1572 in. min, 0.1592 in. max, head end cadmium surface treated unjf thread series
3a thread class right-hand 0.501" thread length flat countersunk head style 0.740" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on nsn 2320-01-318-9902 hett (heavy equipment truck tractor). 2a thread class right-hand 2.068" thread length flat countersunk head style 11 thread quantity per inch tm 9-2320-360-24p fig 217 oxide or cadmium surface treated unc thread series