2a thread class right-hand 1.289" overall length 1.418" overall width 18 thread quantity per inch connector is altered by cutting the four corners at 45 degree angles, 0.050 in. from the holes unef thread series
2a thread class right-hand 1.215" overall length 0.866" overall width 28 thread quantity per inch one point from hex nut to a 0.300 in. flat unef thread series