Bolts Won't go in Weld Nuts For Curt Hitch C13377
Updated 10/25/2021 | Published 10/22/2021 >
Question:
My question is in regards to installation and does not necessarily have to be posted on your website unless you find it beneficial. The installation of my Curt #C13377 hitch went relatively well except towards the very end, the only bolt which would not go straight in is the M12 bolt provided in the kit not the existing ones from the tow hook that supposed to be used with the conical washer. The bolt will not go straight in and bite into the weld nut no matter how much I try to line or re-align the bold up into the weld nut. I even loosened all the other bolts on both sides so theres some play to line the hitch hole up so it wont get in the way of the bolt, but it still wont go in, I tried to torque it without forcing it and it would just go up slightly then pop back out, so its not biting into the weld nut. Could I try one of the existing M12 bolts that came with the tow hook, or another size or bolt with a different thread pitch? Or is the bolt or the weld nut stripped for some reason, or a manufacturer defect or imperfection in the threads of the weld nut on the frame rail not allowing the bolt to bite and screw in? What options can I explore to secure that hitch through that last hole? All the other bolts are secured and torqued to spec. Thanks
asked by: Paul G
Expert Reply:
If the bolt won't go in the weld nut of the Curt Trailer Hitch Receiver # C13377, the issue is almost certainly that the weld nuts are dirty and thus stopping the bolt from catching.
What you'll want to do is clean the weld nut with a brush and lubricant, and I have added a link below to a help article which details exactly how to accomplish this.
Product Page this Question was Asked From
Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Trailer Hitch
- For Towing
- Class III
- 525 lbs TW
- 3500 lbs GTW
- 2 Inch Hitch
- Concealed Cross Tube
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Video: Best 2013 Nissan Frontier Trailer Hitch Options
- Video: Install: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2011 Nissan Frontier
- Q&A: Troubleshooting Hitch Install Bolts Not Threading Into Frame Rail Weld Nut
- Video: Cleaning Weld Nuts for Trailer Hitch Installation
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Nylon Tube Brush - 1/2"
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Video: Curt Powered Tail Light Converter Installation - 2023 Kia Telluride
- Search Results: trailer wiring
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: Clean Up Your Trailer Wiring
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: trailer hitch ball mount
- Q&A: Comparing the Curt Hitch C13416 and EcoHitch Hitch 306-X7396 for a 2019 Toyota RAV4
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Video: How to Choose a Trailer Brake Controller
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Search Results: trailer tires and wheels
- Shop: Brake Controller
- Q&A: Clearance Differences Between Hitches For A 2026 Honda Odyssey EX-L
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)


