Are you tired of hammering in tee nuts? Do you find they pop out of the back of the board eventually?
These round-backed tee nuts are the perfect solution. Instead of spikes, they have two screw holes for you to fix them to your panels. This means they are more secure, whilst cutting into the plywood less. The 29mm backing spreads the load to reduce sinking, and they will also sit straighter since they are not hammered, making for smooth route changing. Do you need any more reasons?
Each tee nut comes with two screws for attachment.