Bedliner shop sprayed my threaded inserts.. Can someone identify the thread spec?

[TerraCraft_Geoff]

Well, they did a great job other than spray a good 1/2" into all of the threaded ports in the bed of my XL. I intend to use these someday so I'm going to need to run a tap through each of them. Would anyone be kind enough to pull one of the bolts and ID the thread for me?

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[Decayed]

m8 iirc

 

[notfast]

I'm going to need to run a tap through each of them.

I suggest you use a rethreading tap rather than, well, a threading tap. A rethreading tap is designed to clean and restore existing threads, whereas a threading tap is designed to cut new threads.

You can use a threading tap to clean and restore existing threads, but the threads will probably be loose as a result of being essentially double-cut. This increases the chance of the threads stripping out entirely when a fastener is inserted and tightened down.

The same thing happened to me when I got my F-250 Line-X'ed. I was able to scrape away material with a box knife, use a slightly-too-small drill bit to clear out the nutserts, and use a rethreading die to scrape the threads clean.

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