2a nut thread a thread class right-hand nut thread a 22.2mm nut thread b thread length 718.0mm overall length 24 nut thread a thread quantity per inch unf nut thread a thread series
3a thread class right-hand 0.338" thread length flat countersunk head style 3.490" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.291" thread length flat countersunk head style 0.428" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.338" thread length pan no. 2 head style 0.240" grip length 32 thread quantity per inch passivate surface treated unjf thread series