2b thread class right-hand 1.541" overall length 0.494" overall width 40 thread quantity per inch items furnished as accessories -mounting nut unc thread series
2b thread class right-hand 2.729" overall length 0.494" overall width 40 thread quantity per inch items furnished as accessories -mounting nut unc thread series
2a thread class right-hand 1.232" overall length 1.341" overall width 24 thread quantity per inch items furnished as accessories -ring unef thread series
2a thread class right-hand 1.294" overall length 1.578" overall width 18 thread quantity per inch items furnished as accessories -ring unef thread series