Clamps kit help!

Hello everyone im new to this forum and this is my first truck.

Tundra SR5 2019 6.5’ bed

I recently purchased a Evo Folding Tonneau cover from realtruck.com
But the clamp kit seem lightly bigger than attachment holes in my bed truck.

They came with 6 clamp kit but there are 8 of attachment holes on each side. My guess is they are use for deck rail system?

Anyone experienced this issue?
Should i buy a new clamp kit? If so where to look for it?
Thank you for your help

 

Welcome from CO. Pics would sure help.

 

Welcome from NY.
As Matt stated pictures would definitely help.

 

Sorry about lack of information here is some pics.
the screw are larger than attachment hole

 

Those holes in the side of the bed or for the optional bedrails. Those clamps you got may be for the accessory rails or they’re meant to just go under the bed lip.

 

That's what I'm guessing. The first pic if the U shaped piece in under the bed side with the bolt head facing down, then the other section slides into the tonneau cover rail.

 

Thank you guys i finally got it installed