Thanks for the quick assist. These actually look to be the same length as the ones I just purchased and am now returning. See below - the left - much stubbier - screw is the original; the right screw is the new one that I'm returning (and looks similar to the Jeep Hardware product)
View attachment 309717
about 2/3 of the way in, the new one stops. I forced it a bit, but it's clearly not going to go all the way through and I don't want to cross-thread anything.
So I'm trying to located a set of the shorter versions...but again, appreciate the assist