SAE #130424 HnF SKU Thread (inch) A (inch) B (inch) C (inch) HF2225P-02-02-02 1/8 0.55 0.66 0.56 HF2225P-04-04-04 1/4 0.78 0.91 0.68 HF2225P-06-06-06 3/8 0.84 0.97 0.81 HF2225P-08-08-08 1/2 1.09 1.25 1.00 HF2225P-12-12-12 3/4 1.16 1.39 1.25