2a thread class right-hand 1.500" thread length 20 thread quantity per inch inside center of bend flattened to 3/4 in. w by 5/16 in. thk cross-section with 7/16 in. radius on outside of bend round bend unf thread series
3a thread class right-hand 3.625" thread length 14 thread quantity per inch one leg 1.125 shorter in thd lg phosphate surface treated square bend unf thread series