Behind the drywall I have 2x6 studs. I will be mounting vanity and than a heavy 32" sink. There are four brackets top and bottom.
I haver robitson #14, 3" wood screws I've been given at HD and washers. Should I get hex head screws instead of the robitson screws and use a nut driver? Is the robitson #14, 3" wood screw good enough or would something else be preferred? First I would pre-drill with a small drill bit so I don't split the 2x6 when driving it through. This is the first time doing this so i want to make sure it stays up. I have two kids so I will also install French cleat underneath. Any suggestions/help would be much appreciated.