Bracket for solar panels

Made this bracket for 540W solar panel, using M8 screws to attach it to a shed's roof. Printed in PETG with 35% Gyroid infill and 4 walls. Print in the orientation of the STL file.
Bracket is 25mm wide.

Update:
Added v4 version with tapered edge towards the panel
Added v5 version with sunk bolt head. It's wider by 5mm to compensate for the removed material.

Update 2:
It's been a month or so and couple of storms rolled by. One that literally unearthed neighbours tree and these brackets held up.