Toyota Tundra Forum

there are holes with threads visible inside the bed, on the sides. You know, if you had holes cut in the bed caps, there are frame "boxes" underneath. Does anyone know what size bolt it might take? I want to mount something...a mod to it. TIA-Thanks in advance!

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07 CM TRD SR5 4x4

the rail mounts holes? M6

I'm not sure, I'm not familiar with where the rails mount. But I will try that size...Thank you!

I think we are talking about different things. if you mean the top of the bed where you can pop out the caps, 2 on each side, that is different. on the bed side of those there are no threads, just a hole. I have my cap wires running through mine. the hole is 1/4 to 3/8'" big from memory.
I was thinking of the 5? threaded holes the run under the rail near the top.

The holes for the rails are indeed M6 screws. But I am not sure that is what Girlz is asking for.

Here's a picture of the rails from my tonneau install:


Are these the holes you are asking about?

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Any questions about truck mods I have done need to be asked in the forums. Don't send me a private message about mods cause I probably won't answer that PM unless there is money involved.

2007 SR5 Crewmax 5.7L 4x4
Mods: nerf bars, Truxedo tonneau, radar detector power, 3M clear bra, fog lights, black billet grille, rear differential breather, parking sensors, Line-X, power tailgate lock, hood safety latch mod, one off driving lights behind grille, Pioneer NAV w/ OEM camera, Flowmaster 50 SUV dual/dual, blue LED dash lights, Volant CAI, Llumar tint, CompuStar Pro alarm, ProComp 6066 20" wheels, Cooper Zeon LTZ 275/60/20 tires, OME HD coilover lift, Firestone helper air bags, 55w reverse lights, stereo cable lock, Tekonsha P3 brake controller, colormatched exterior parts (de-chromed truck), eDead sound proofing, CDT Audio speakers, Custom made speaker brackets, Weathertech floor mats
All mod descriptions and pictures © 2007-2009 by Toxarch. They may be copied only for personal use and the mods may be done for non-profit only.

if your bed aint rocking, you can go and put some screws in those mystery holes......

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That sounds dirty, beer.......

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07 DC SR5 Long Bed Desert Pyrite Mica, folding rear seat mod, Raptor step bars, OEM back-up camera, "iPod in the ashtray", Toytec 3" leveling kit

I suspect that is exactly what beer was alluding to grim, lol!

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2007 Tundra Limited Double Cab 4x4 Super White
Volant CAI
Pioneer AVIC Z-2 (hard drive upgrade to AVIC Z-3)
Key FOB Tailgate Lock (courtesy of Toxarch)
OEM back-up camera w/flip down monitor microswitch mod
Sirius Satellite Radio
WeatherTech Floor Liners
20" OEM alloy wheels
Line-X Bed liner
UWS Black Powdercoat Low Profile Toolbox
DU-HA underseat storage unit
JC Whitney Black Nerf Bars
Lund Interceptor II Bug Shield
Tekonsha Voyager Brake Controller

I figured!