stainless steel roof fasteners

[Eric]

I won't comment on using pop rivets on you roof deck. I suspect your
considering pop rivets because using conventional fasteners there doesn't seem
to be a good alternative that is larger than the #14 screws BB used. I found a
successful way to deal with the stripped out screws on my roof deck plate.

After extensive searching I found a stainless steel product called a "Strap
Screw" that is available in a #17 screw size, slightly larger than the #14
screws that BB used. The strap screw has a .10 thick washer under the head that
has an EPDM washer bonded to the SS. These screws fastened securely to the
20+/- stripped out holes I found on my roof.

Source of these fastener includes McMaster Carr (mcmaster.com). Part number for
the 3/4" long Strap Screw is 91644a821. I used 3M #5200 as a bedding compound
for each of the fasteners.