When I picked up the SHCS's from my local CDJR dealer, I discovered that the screws were 18 mm long. The factory screws are 16 mm long, which sometimes is harder to find. The extra 2 mm length may "bottom out" the screws during tightening and prevent you from getting a good seal. (Note: I didn't use them when I made this repair.) See my post on this.

I've got several versions of the required SHCS's for this repair. Send me your "snail mail" address via PM and I'll send you enough of each to cover your needs. I also don't recommend tightening these beyond 5-6 Nm. No more than 1/8 turn past snug during assembly. And I'm convinced (more so than others) that using a sealant designed for this application will make all the difference. I've added my $0.02 on this earlier in this thread.

Good luck with your repair. Let us know how it goes/went.