Bed Rail Sliding D Ring Things

Not sure what these are called, but I do know they suck.....

I had two loosen on a 400 mile trip last weekend.
They were tightened until they clicked, however when I got home both had about 2 inches of side to side slop and were no longer tight.

Question: Is there a mod to make these more reliable, or is there something better to install in their place?
I use them often and would like to know that they will remain tight when in use.

Thanks

 

http://www.tacomaworld.com/forum/2nd-gen-tacomas/90069-new-d-rings-available-3.html

look at post 41 for an option

 

Thanks Jester!
I just ordered 8 of these, 3 each side and a couple for the front.
This will solve a lot of problems for me, as I sometimes run a cable through landscaping equipment when I have to get supplies, and I'm limited to the bed hooks due to the ability of being able to slide the rail hooks out. (not too secure haha)

Thanks Again for the info.

 

They only lock into place at certain intervals along the rail, then you tighten them down til it clicks. If they're locked in, they shouldn't move around on you if you're under the weight rating.

 

or look at post 57

 

for the record they are called cleats...just to make your google search easier

 

I drilled a hole in the knob and routed a zip/cable tie through it. I have never had a problem with it coming lose and sort of adds some theft protection, sort of.