HF41IP HnF SKU Size (inch) A (inch) Hex (inch) Thread HF41IP-03 3/16 0.53 .037 3/8-24 HF41IP-04 1/4 0.54 0.43 7/16-24 HF41IP-05 5/16 0.59 0.50 1/2-20 HF41IP-06 3/8 0.66 0.62 5/8-18 SAE 040109
