banjoflyer posted:For better grip in MDF make sure you use "coarse" thread drywall screws. It really makes a difference. There are many brands to choose from.
Also avoid "overdriving" the screws as that can lead to stripping out the screw hole. Essentially the screw becomes a drill bit and reams out the threads it just cut in the MDF.
Mark
I would recommend SPAX star drive screws. I have used them for quite some time. Get 'em at the Depot.
Dick