45º Forged Street Elbow HnF SKU Thread (inch) A (inch) B (inch) Flats (inch) HF1214P-02-02 1/8 0.63 0.81 0.56 HF1214P-04-04 1/4 0.63 1.06 0.81 HF1214P-06-06 3/8 0.72 1.06 0.93