I have an old metal dock thing that goes above a wet area at the back of the property to a dock on a private lake.It was never cared for by previous owner(s). The fasteners holding the wood to the metal frame have a single round hole at the top and nothing on the other side of the frame (they don't go all the way through).With the goal of putting new boards on top of this frame and then replacing the dock on the lake what are these things and how do I get them out and replace them?https://ibb.co/gg8p1o via /r/DIY https://ift.tt/2upsMjz
