Quote:
Originally Posted by Don Ro
Cheater! 
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LOL I didn't do it, that's how Matt identified it. He gets points for solving the challenge, Kobayashi Maru style. (sorry for the geek reference).
I suggested it looks like a shear pin which is typically designed to limit torque to prevent overload damage.
The necked down portion is supposed to shear off at a specified load to prevent other components from breaking. An intentionally built in weak link that's easy to replace.
Still awaiting verification to see if that is what it is ............