Rope Light Hooks

The hooks that came with my rope lights had terrible durability and they were impossible to install by their design. I had the lights hung on the railing but hated how sloppy it looked. So I created some hooks to hold the lights in a straight line. The lights i have are around 11 mm in diameter. The counter sink is for a # 8 screw and if you want to increase the durability, it will decrease the slight flex in the hook, but just increase the wall loops. I used PETG, I know that its not the best for outdoor use because the sun will eventually weaken it but I do not have any stronger material yet. But I have read that there are better filaments for outdoor applications.