Does the 5th Wheel Pin Box Mounting Bracket Require Drilling?

Updated 04/13/2026 | Published 11/20/2023

Products Featured in This Question

5th Wheel Pin Box Mounting Bracket for Wheel Masters Level Master Trailer Bubble Level

(15)

$16.46

Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket

(210)

$56.15

Question:

Do you have to drill holes in your pin box? Want that void your warranty if you drill holes in the pin box?

asked by: Winford C

Helpful Expert Reply:

Yes, it does. The 5th Wheel Pin Box Mounting Bracket for Wheel Masters Level Master Trailer Bubble Level item # WM6700BK does require drilling. It comes with the necessary screws to install on your pin box.

You would need to check with the manufacturer of your pin box to see if drilling into it would affect your warranty.

To purchase the mounting bracket and level together you would want the Wheel Masters Level Master Trailer Bubble Level with 5th Wheel Pin Box Mounting Bracket item # WM6780.

expert reply by: Jerred H

Tom C.

4/13/2026

I would like to add that I could not find the recommended drill size anywhere, which is really pretty critical drilling through 1/4" steel, so I tried 1 hole with a 3/16" drill bit but it was just to snug for my liking (I was afraid that I might snap the bolt), so I went with 13/64" drill bit and it worked perfect for me. I really love the level