"I purchased 1/4-20 T-Nuts from a local hardware store for the baffle mount. The T-nuts have prongs that penetrate into the wood to keep them from spinning when bolts are tightened. I press them in using a c-clamp, and use a little Gorilla glue to ensure that they don't pop out."
"To mount the driver, I'll use hurricane nuts on the back side of the baffle. To mark the holes for their location, I shimmed the driver to the center of the recess using pieces of cardboard, then lightly punched dimples into the MDF using a transfer punch. The punch centers on the driver's screw hole for an accurate layout. The driver must not move between punches in different holes, and the shims combined with a 25lb driver were sufficient."
That's from the link you gave me.
So what drill bits do I need to actually make the holes for this to happen?
And when they say they put the T Nut in and then clamp into place... is that all? I looked around online and it definitely mentions that you need to screw in place to get the TNut teeth to bite into the wood but that it doesn't work well with MDF? So should I just use threaded inserts instead?
Sorry for the hundreds of questions, I just have 0 woodworking knowledge when it comes to this. The most I ever use a screw driver for is to insert and take out screws for electronics/PC stuff.
Since the front is a double baffle should I Predrill through each piece separately or can I clamp both together and drill my pre drill hole through both?
Originally Posted by LTD02
pre-drilling the holes and using a coarse thread screw is another option. these have a socket head for better looks and to help prevent putting the screwdriver through the surround.
oh, called "Low Profile Head Socket Cap Self Tapping Screws". i'm sure you could find something in the 'thousands of screws' isle at the box store.
Is it still recommended that I use a threaded insert of some kind to hold those into place as well?
Edit: Also those pictures I posted, so am I in trouble with how those pieces ended up? First pic, is that crack something I need to worry about or can I fix that with bondo? How do I fix the part where the wood split there in the second pic?