TyroneandGladys wrote:
Drill holes in the receiver sections one on top or bottom and one on either side. Then weld a nut over each hole then screw a hex head bolt into the nut and tighten against the inserted section no slop.
You mean like this:
While this type of hitch tightening system does work, it's not a flawless system. In the picture, you see two of them. One is on the top of the receiver and the other, on the side. The receiver is 1/4" thick. I drilled and tapped both holes. Then I installed a nut on the proper size/thread bolt and, inserted them in the threaded holes. I spun the nut down to fairly tight, on both. Then I welded both nuts to the receiver.
Then, I installed a second nut on each bolt. Now, when the slider is in place, the bolt(s) are tightened and, once tight, the second free spinning nut is now tightened against the welded nut. This system works and, makes things fairly tight. But, as stated earlier it's not flawless. What can happen is, based on the torque/weight of the towed vehicle, the forces can actually etch the tips of the bolts into the top and side of the slider.
This can happen in as little as a few hundred miles. When you stop for fuel or, at the end of a days travels, you can actually see the slider move around a small amount, even with a super tight set of lock bolts/set-screws.
Scott