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What kind of Bolts Do I Need for the Demco Channel Tongue Trailer Coupler?

Question:

im making a boat extension to my trailer using 3 inch box iron the trailer iron does not have holes so i will have to drill holes into the 3inch box iron what size hole is this and how long does the bolts need to be type of bolts or grade

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Expert Reply:

The hole diameters for the Demco Channel Tongue Trailer Coupler item # 12564 are 1/2 inch. It is recommended to use grade 8 hardware to attach the coupler to your trailer frame. You can find these bolts at a local hardware store as they do not come supplied with the kit because of varying sizes of trailer frames.



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Jerred H

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