HF61CC   HnF SKU Port (inch) A (inch) Hex (inch) Thread HF61CC-04 1/4 0.44 0.50 7/16-24 HF61CC-06 3/8 0.40 0.62 9/16-24 HF61CC-08 1/2 0.48 0.75 11/16-20 HF61CC-10 5/8 0.56 0.94 13/16-18