How to attach GRS mount to Durston bench

[jewel]

Hello all. After spending a few years working in other people's shops I am putting together my own workspace for the first time.

I have a Durston Superior bench that includes a metal bracket with 6x holes to accommodate the GRS BenchMate mounting plate. I’ve seen some videos where the mounting plate is attached with nuts on the back side of the bracket, but the bracket fixed to my bench is just about flush against the wood of the bench (I can slide a piece of paper between the metal and the bench). The GRS adapter came with 4x screws.

Do I just drill pilot holes and screw through the bracket directly into the wood behind?