Questions: self drilling/ tapping screws for chassis work

twodownzero wrote:
Maybe I'm in the minority, but I would drill and tap every hole and install an appropriate hex head bolt in it, probably with some antiseize.

It's a minority of at least two. Sheet metal screws are not generally used to attach to mild steel structural members. That's a job for finer threaded self tapping machine screws which require a pilot hole. I like the idea of drilling and tapping if you ever plan to remove them for future service/repairs. (wet location corrosion)

Chum lee