2a thread class right-hand 2.500" thread length 9 thread quantity per inch furnish with plate assembly, 4.000 in. width, 8.000 in. long, two holes 0.900 in. dia. paint surface treated round bend unc thread series
2a thread class right-hand 1.49605" thread length 14 thread quantity per inch total free length 17.4882 in, 0.4374 in dia stock, item used on M114A1 how round bend unc thread series
3a thread class right-hand 1.500" thread length 18 thread quantity per inch one liner 3/16 in. thick, 1-1/2 in. width, 2-15/32 in. height welded in radius of bolt round bend unf thread series