I am attaching a 15watt (1.25amp) solar
panel to charge the batteries. I have the parts
but am deciding how to assemble them.
A Magma rail bracket
A piece of teak
The question is do I drill small pilot holes and use pan head
screws and washers or do I drill larger holes all the way thru and use nylock nuts and bolts with washers?
What is more of a concern? Water
intrusion from the top of the wood due to the nut or wood shrinkage due to age causing the screws just to fall out?