Not really. Those are flat head style, what you should be using is called a Ultra Low Profile Socket Head screw. otherwise the screw head could interfere with the cleat sliding past it.
Below is an example. HRG
You're welcome. FWIW, try to find fairly thick washers, or double/triple up. The rail is spaced off the bed to allow the cleat "pin" to pass thru the rail.
HRG
I just went thru this with a trans/PTU/RDU fluids change. My local shop was considerably cheaper than my dealer quote, plus they let me supply all the fluids.
HRG
I'd be curious how the top cover gets removed. I feel that the cover is not dark enough, I seem to be the last vehicle on the road with it's headlights on in dusk conditions. I'm thinking that maybe wrapping it with some tint film might do the job.
HRG
Never mind, I found this. Looks like the...
Here are the instructions. Hope you've got an hour,,,,,,,
https://www.fordservicecontent.com/Ford_Content/Catalog/accessory_files/VNZ6Z_7855100_A.pdf
HRG
@BK007 Sorry for being late to the party here, but WOW, what an experience. Looking at the TW driveshaft site, it appears as though they'll offer a refund if the 1-piece does not fix the problem. Were you able to take advantage of that?
HRG