I usually have to tap out the binding inserts as they get plugged with crap from the construction process.
This is the tap I use, it cleans out the threads very nicely and screws then go in like butter. I have used this on Lib, Ride, Burton, Arbor boards with no problems what so ever and it fit all of them just fine. I usually also run it into the inserts ** all the inserts ** at the end of the season to clean out any rust or debris that has built up over the season.