I need to fixed a 20cm x 9cm steel plate (pre-drilled) onto a piece of medium density board (thin desk surface). The steel plate will form 'wings' on the desk for some tiny speakers, which are around 1KG each.
There'll be four bolts or screws to affix the steel plate to the desk. Would simple self-tapping screws be sufficient in this scenario or should I go for the nut and bolt solution (which would provide a lot more 'hold')?
I have the self-tappers already, but would need to get the nuts and bolts.