Tongue box mounting - Fiberglass RV

Thread Tools Search this Thread Display Modes
Old 04-30-2013, 11:41 AM   #1
Senior Member
Name: Drew
Trailer: Trillium Outback - 2004
Posts: 106
Tongue box mounting

I'm thinking of buying a tongue box for my trailer. I've noticed people either use self tap screws or U bolts to mount their boxes. Does anyone have any thoughts as to which would work best? Thanks!

Where we’re going, we don’t need a plug-in.
multi-task is offline   Reply With Quote
Old 04-30-2013, 12:32 PM   #2
Senior Member
Name: bob
Trailer: 1984 u-haul ct13; 1996 Casita 17 Spirit Deluxe; 1946 Modernistic teardrop
New York
Posts: 3,704
I would say U bolts would be the best, or maybe some angle iron welded to the trailer for the box to set on, then bolt the box to the angle. I've had a problem finding square U bolts locally, had to get them from McMaster Carr.

mary and bob is offline   Reply With Quote
Old 04-30-2013, 01:32 PM   #3
Senior Member
cpaharley2008's Avatar
Name: jim
Trailer: 2016 2ndGen Escape19 Prairie Schooner pulled by 2014 Dodge Ram Hemi Sport
Posts: 6,241
I have mounted 3 of these and the answer depends on your trailer's frame. "I " Beam frames are harder to drill thus the clamps are used. Box frame or "C" channel can be easily drilled and screws utilized. The issue with screws is a smaller surface area for holding vs the clamps when used with the metal brackets give a larger surface holding area. Just my observations. You will have to use very large washers with metal screws and again the brackets installed upside down will give a larger surface for holding.
cpaharley2008 is offline   Reply With Quote
Old 04-30-2013, 01:34 PM   #4
Senior Member
SilverGhost's Avatar
Name: Jason
Trailer: Egg Camper
Posts: 273
I would add that you want to spend the extra money on stainless steel bolts, which ever way you go. You wouldn't believe how fast bolts rust on the tongue of a trailer.

SilverGhost is offline   Reply With Quote
Old 04-30-2013, 02:00 PM   #5
Senior Member
Dennis Clinton's Avatar
Name: Dennis
Trailer: Scamp 16'
Posts: 258
I built my own tongue box and used U bolts around the cross members that originally held the propane tank. (I took the tank off as the only gas appliance I had was the stove and I prefer to cook outside anyway). My box lid also opens to the side instead of the back-giving me better access. I also mounted a received on top of the box for a bike rack.
Dennis Clinton is offline   Reply With Quote
Old 04-30-2013, 11:31 PM   #6
Senior Member
Name: Drew
Trailer: Trillium Outback - 2004
Posts: 106
Thanks for the suggestions. Sounds like I'll go with U bolts.

Where we’re going, we don’t need a plug-in.
multi-task is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tongue box users rgrugg Modifications, Alterations and Updates 10 02-24-2012 03:39 PM
New tongue box Andrew GPSMapNut Modifications, Alterations and Updates 34 07-19-2011 02:37 AM
A/C in closet mounting box and drain pictures davidha Problem Solving | Owners Helping Owners 9 09-05-2010 09:49 PM
Adding a tongue box Roy in TO Modifications, Alterations and Updates 6 06-03-2008 08:31 AM
Tongue Box Barbara Gardin Care and Feeding of Molded Fiberglass Trailers 1 07-03-2006 08:03 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:04 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.