How Many Bolts Are Used To Mount The Curt 5th Wheel Brackets To The Frame Of A 2012 Chevy Silverado

Updated 03/06/2025 | Published 07/03/2023

Question:

Per the directions I am supposed to have 4 holes through Frame to mount side brackets but I only have 2 so curious if that is fine or if there is a different mount for my specific application

asked by: Chris B

Expert Reply:

On 2016 and newer models there's weld nuts available for you to insert two more bolts in the brackets for the Curt Custom Fifth Wheel Installation Kit for Chevy/GMC # C16411-204. Since you have a 2012 you're good to go with just the two bolts you referenced. In the attached video below where Dave installs these on a 2013 you'll see he only uses two bolts on the side brackets when attaching them to the frame.

expert reply by: Kevin C

Stephanie

2/25/2025

I actually am looking for those bolts that bolt to the frame. Is there a certain name for them? I’ve looked around everywhere and cant seem to find them.

Kevin C.

3/6/2025

@Stephanie The bolts can easily be found at your local hardware store chain. If you have a 2015 or older model you'll need some 5/8"-11 x 1-3/4" Grade 8 Yellow Zinc Finish Hex Cap Screws, 5/8" split lock washers, 5/8" flat washers, and 5/8" flange nuts. For 2016 and newer models you'll need M16-2.0 x 35 mm Hex Cap Screws/Grade 8.8 / Zinc, 5/8" split lock washers, and 5/8" flat washers and would thread into factory weldnuts in the frame.