My limited understanding of stainless is that 304 is not to be used in saltwater environments. I thought the standard for marine use was 316 stainless with a yield of 60,200 psi.

How would the right angle load be presented perpendicular to the tang? Even in the worst shearing conditions I've experienced at anchor the anchor load was never more than 60 degrees off the center line of the boat.

Wouldn't the angular load felt by the anchor tang be a function of the cosine of the angle off the centerline thus reducing the angular load felt by the tang and also reducing the lever arm L? It has been many years since I failed to understand most of these concepts in college so maybe I have this angle stuff all wrong.