Used on w/s: aircraft, stratolifter c-135. 3b thread class right-hand for use on 3/64" oversize hi-lok pins. anodize surface treated unjf thread series
2a thread class right-hand 1.250" thread length hexagon extended washer head style 13 thread quantity per inch phosphate or oil surface treated unc thread series
2a thread class right-hand 0.560" thread length hexagon extended washer head style 32 thread quantity per inch sealing compound black pvc (pm-118) certified to fbms 6-10 ty. 1-b dichromate zinc surface treated unf thread series
2a thread class right-hand 1.250" thread length hexagon extended washer head style 13 thread quantity per inch phosphate or oil surface treated unc thread series