D-ring tie downs in bed?

I was looking at the bed on my new tundra and wondered why Toyota would not install plugs or bolts in the threaded cargo system nuts in the bed.I'm considering having a LINE-X bedliner installed but don't want those holes filled in with the material.Has anyone installed any D RING type of tie downs in those locations?

 

I actually did the D-ring thing. @matluth's build thread begins sort of

 

I assume these bolts would be metric?

 

I told the Line X guy I wanted to keep the holes open and he did. I assume he put temporary bolts in prior to spraying.

 

Definitely metric. Forgot the size offhand. I re-used the bolts that came with my slide rail system (sold that)

 

M6-1.0 if I remember correctly.

 

Pretty sure you are correct on that M6/1.0

 

Going to stop by Home depot and pick up some Unistruts and Unistrut channel nuts. Going to mount them at the lower D-ring fastening points. This way I regain slide rails and still have 12 stationary D-ring mounting points. I should be able to still do the ammo can mod without getting in the way of the tonno(in theory.) Worth a shot. A good weekend project.

 

On my 2011 The bed rail hole size is definitely 6m x 1.0

 

Welcome from CO. Seems you had the same idea as me. heh heh.

 

Yeah. I checked the package from leftover cap screws. It's M6-1.0

 

The Uni Struts are not going to work with my "D-ring" set up. The Uni Struts are too wide height wise. I can retro fit actual D-rings like @alalmcgrath did and make the Uni Struts work so I can use Brian's/csu vipers ammo can mod. I will make it happen!!!

 

Following.

 

Where did you buy these? Ive checked my local Home Depot and Lowes.

 

Bought them on AMAZON. They are called "flush anti-rattle D rings". They come with a backing plate (plastic) that I did not use.