Bolt Hole Size Spacing, and Channel Metal Thickness for Demco 21K Trailer Coupler

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Question:

3 questions....What thickness of metal does it bolt onto and what size are the bolt holes and what is the distance between the bolt holes center to center?

asked by: Bill

1

Helpful Expert Reply:

First, the thickness of the metal channel that the Demco trailer coupler # DM14040-52 is going to bolt onto will be 1/4 inch to 3/8 of an inch thick. Or you could split the difference and say 5/16 inches.

As far as the size channel, it is designed for a 3 inch wide channel such as # DM59602 which would be welded to the trailer.

The holes are spaced 2 inches apart on center. The bolt holes are slightly larger than 5/8 inch diameter for use with 5/8 inch bolts, # PS024202.

expert reply by: Michael H

1

Answer 1

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Answer 2

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 3

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Answer 4

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Answer 5

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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Answer 6

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 7

Hi Larry, So we have a couple bumpers that may work, though each is 96 inches long. They can be cut to length though, and the difference is their width, as one is 3" wide and the other 4" wide to fit different size bumpers: - Pre-Drilled…

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Bolt Hole Size Spacing, and Channel Metal Thickness for Demco 21K Trailer Coupler

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