So it has been a couple weeks now and I just wanted to update on the fasteners I went with.
I used a combination of half self tapping screws and half brass expansion nuts.
I’m not sure what the material was of the #10 self tapping screws that came with the renogy kit so I went to the hardware store and purchased #12 stainless steel.
I ended up finding the metal frame inside the high top so I was able to use the #12 self tapping SS screws in the outer holes of the Z brackets. The inner holes I had to use the brass expansion nuts.
I used loctite on almost all of SS screws.
I do have to say I’m pretty happy with how it turned out overall. HOWEVER, a tip about the brass expansion nuts*** make sure the machine screw threads into the nut before adding caulk and placing the nut into the pilot hole. Out of the 16 I used I think that 7 of them did not turn right and pushed the entire nut threw and just didn’t work until I replaced them. Very frustrating and it was definitely a challenge since I’ve never worked with them before either.
Also, I laid Eternabond down first before putting the Z brackets down and then on top of the fasteners as well. I just wanted to make it as waterproof as possible. When I went to use a polyurethane sika around the tape to really seal it up it did not stick to the top of the tape. So I will have to take that up and put down the self leveling dicor instead which is the only thing I’ve found to stick to the top side of the tape.
