what kind of oad lock sockets do i need

[alloffroad]

I have a 2000 klamath 12 foot aluminum boat. The top keel edge is round and the side is angled. I want to put on oar sockets but not sure what style to get. I bought a set but they are designed for a square edge.

 

[Bob_VT]

People usually make wedges to make up for the shape difference. I have seen them made from metal, wood and nylon.