I am replacing the rubrail and found a number of 10-24x2 ½ machine screws protruding above the surface. Does anyone know their purpose? Are they part of the hull/deck joint? The new rubrail is unlike the original and wants to sit flat on the surface. I can counter sink the backside of the new rail if necessary but these screws are a mystery.
The factory drawing only shows thru-bolts. Screws hold on the aluminum channel. If you have screw pounty threads sticking outboard, I have no idea.
http://c34.org/wiki/images/b/b0/Hull_to_Deck_Joint_Section_-_1980-2-18.pdf
There is quite a bit of info on the C36 website on how to deal with this. They can be accessed under the inside trim alternatively cut around them with a circular cutter and only replace the screws when fitting new extrusion.
Thanks and I will check the C36 site. Onward.