You would be surprise at how strong it is.. That said I don't like them and don't use them. I prefer a grab loop made out of tubular webbing going through the hull just bellow the gunnels about 4" back from the ends!
This really does have me curious. All my canoes - RX and composite - simply have holes drilled near the stems for grab loops. One composite has something like Mike's tugeyes, only smaller, but the other is a bare hole in the kev/glass. All the RX canoes have just bare holes. The amount of water entering through that is insignificant, if even measurable - and I have never seen any indication of weakness or wear in the hull or the rope used for the loop. Why would NC go to this trouble for something so ugly and obtrusive, when the holes they used for years worked fine and looked fine? Does Tuff Stuff have some property that makes the old way unworkable?
I suspect the eye bolt was suposed to be some nostalgic reminder of something seen on an old wood-canvas canoe.
. If that were my boat I'm sure I would hit my head on it when on a rack, wack my shin on it when on the ground and I'd be lucky not to get my finger stuck in it while pulling the boat up by it and having it shift.
Hey PA Tripper. Why don't you contact Nova Craft and ask them some questions? Was it designed and tested to handle a certain load? Was it ever tested to failure and if so what did it take to hurt it? Both are kind of basic technical questions. In principle it should have some sort of design target, and testing to failure is also a best practice for understanding one's product. From your photo it looks to have a lock nut so the joint should hold torque well over time...I can imagine that the stresses could jump if the joint was loose.This is what the inside looks like. A small plate and locking nut. I'm just not sure this would take a lot of stress. The canoe is the new Tuff Stuff layup.