2009 - 2014 F-150

Bed Holes Threaded?

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Old 04-13-2009 | 12:53 AM
MUTTLEY's Avatar
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From: Kodiak, AK
Bed Holes Threaded?

Just wondering if anybody knows if the 9 holes in the 6.5' bed, used for the cargo management system, are threaded, and If they are, does anybody know what size they are (bolt and thread count)? Thanks for all the help.
 
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Old 04-13-2009 | 11:13 AM
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CnA
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From: Ypsilanti, MI
Originally Posted by MUTTLEY
Just wondering if anybody knows if the 9 holes in the 6.5' bed, used for the cargo management system, are threaded, and If they are, does anybody know what size they are (bolt and thread count)? Thanks for all the help.
They are M8 with a pitch of 1.25mm

Be very careful using them without the cargo management system (CMS).

The reinforcing plate for the bolts behind the bed's body panel is only about 1 1/4" x 6 1/2". Each plate reinforces a pair of bolts. There are three plates per side.

If you tie a load to only a single pair of screws, you WILL pull out the panel. The CMS system is meant to tie all three pairs of plates/bolts together with a rail as a strong system, with the load applied to the rail ONLY. Used individually, the screws are not that strong. The CMS rail is also screwed to the top sheet metal of the bed's body panel with a bunch of M6 (1 mm pitch) screws for additional strength.
 
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Old 04-28-2009 | 01:43 PM
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Is the back side of these exposed to the wheel area? I noticed after washing mine that there is a brown dirt streak running down from each. Looks terrible on the black Line-X material.

I think I"m going to buy a short stainless bolt and washer for each to fill them.
 
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Old 04-29-2009 | 02:17 PM
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I did this today. Apparently the holes aren't actually threaded, or if they were, they weren't 8mm x 1.25. I'm assuming they use self-tapping bolts. I had to run a tap into each to cut threads. Then I put in a short stainless steel socket head machine screw in each. They look cool against the black LineX and should stop my weeping problem.

Listen to CnA when he says they can't be used for tiedowns. There's no strength in the areas they are located. I was flexing the panels just getting the tap started.
 




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