Availability of Flat Mount Coupler With 5" Mounting Hole Spacing
Updated 05/26/2026 | Published 05/22/2026
Question:
I have a trailer with a flat plate bolt on tongue for 2 5-16” ball. I am wanting to replace it since the latch is worn /damaged. All the flat plate options I see have 4.5” bolt hole spacing. My trailer has 5” bolt hole spacing left to right and bolt hole spacing every 2” up/down. Is there any option that can fit my trailer. It is a Butler brand trailer
asked by: Scott M
Expert Reply:
Hey Scott! The 4-1/2" spacing you’re seeing on the # DM79FR is the standard bolt pattern used on most flat mount couplers. Unfortunately, we do not carry a coupler that matches your 5" horizontal spacing with the mounting holes 2" apart on center.
Your best option would be to either modify/redrill the existing mounting plate to fit a standard coupler, or have a certified welder install a new coupler like the Demco on the trailer.
What are you typically hauling on your Butler trailer?
(click to enlarge)
Product Page this Question was Asked From
Demco Trailer Coupler - Flat Plate Mount - 5/8" Bolt Hole - 2-5/16" Ball - 21K lbs
- Flat Mount Trailer Coupler
- Fixed Coupler
- Bolt-On
- 20001 - 25000 lbs GTW
- 2-5/16 Inch Ball Coupler
- Auto Latch
- 5/8 Inch Diameter
- Demco
more information >
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