Carriage Bolts

[bball]

I've done some reading around in the forums and I plan on using the 3/16" black carriage bolts to mount my joysticks but I'm wondering how to drill the hole for the carriage bolts.  I've seen in some threads that carriage bolts have a square or hex block under the head.  Do I have to use a countersink bit to make space for the square block under the head or can I just drill a normal hole to mount the carriage bolt ?  I have a feeling this has been discussed on this board before but I couldn't find it.

bball

[Rocky]

If you are using a wood Control Panel, just drill the hole and when you tighten it, the carriage bolt will sink in and create it's own square.


Rocky

[Zakk]

If you're wanting to sink into metal or platic, I recommend drilling the hole, then squaring it out with a grinding bit in a dremel.  If you try to tighten the bolt into plexi it will, more likely than not, crack.

[bball]

Hmm.. now that I think about it I am going to mount the lexan on the cp using carriage bolts.  Is there a special router bit or dremel bit I can get to make holes for carriage bolts ?

bball