Rare Penn Screw?

[gstours]

A few years ago I posted the question if anyone uses a different screw on the senators freespool to attatch the lever. I didn,t care for the hex bolt looking factory offering that we are use to!
  The other day I found the animal on a Penn 114h and thought the good people out there might want a view also!
Has anybody an Idea of the history of it? It seems to have a different thread pitch than the hex ones we are used to. Seems to be a factory part, as it works fine as is but wont interchange with other stock penn reels.  What do you think?

[Penn Chronology]

Looks to me that someone stepped up the original size fastener a size by drilling and re-threading the eccentric cam to fit this new multi screw. I would be curious what kind of material the screw is made from. Is it magnetic? The original is chrome plated brass.  I do not believe this was done in the Penn factory but who knows. Stranger things have happened. 

[handi2]

I believe someone just used what they had to get it going again

[alantani]

ingenius!