Need help: What is a "010" bolt?

[604Bronco]

Holy $hit - the great @RagnarKon has been stumped.

And @Ducati1098!

*panic intensifies*

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[Rick66]

My past experience in fastener sales lends me to guess that the 010 is a stamp from the manufacturer.
As previously stated, metric uses a different nomenclature than US, and we usually see 8.8 or 10.6 on metric, which are similar to G5 or G8. Using a lower grade bolt at times is intentional, dictating a preferred fail point. (Like a shear pin, for instance). Didn't follow this thread closely enough to see where these are located on our Broncos.

Just my .02

 

[604Bronco]

I don't know if this helps or not @RagnarKon - But post #12 on here might shed some light on this? I know it's not for a bolt specifically, but maybe the logic is transferable?

https://www.thirdgen.org/forums/tech-general-engine/160334-block-casting-numbers-010-a.html#:~:text=If both numbers are present,indicates negligible amount of tin.

 

[Squatch]

I think it's the tolerance +/- .010

 

[Neps]

CH is the Manufacturer's mark for

Cold Heading Co
4600 Bellevue
Detroit MI 48207

Cold Heading

 

[NYtoCALI]

The manufacturer is a Montreal Canadiens hocky fan.

Go Sabres!!

 

[rblume73]

Definitely 010.

Ohhhhhhhh... ya know.... 010 may be 10mm, because it is indeed a 10mm head.

As far as Grade 2... it's metric. M8 bolt. As far as I know metric doesn't follow the little line/notch system.

Another pic:

Metric bolts usually have a number on them specifying tensile strength in KPa. Are they aluminum? That may be a whole different animal.

 

[Fordified1]

Metric bolts usually have a number on them specifying tensile strength in KPa. Are they aluminum? That may be a whole different animal.

I was thinking the same thing. The metric bolts CAT uses are mostly 10.9 which equals grade-8. But “010” makes Little sense. I would have guessed it was same as grade 6. But my wife says I guess too much! lol

 

[RagnarKon]

Metric bolts usually have a number on them specifying tensile strength in KPa. Are they aluminum? That may be a whole different animal.

To my eye they are hot-dipped galvanized steel, but I'll admit I'm not exactly a metallurgy expert. Once it STOPS RAINING I'll go stick a magnet on them, should answer the question pretty quickly.

I'm tempted to give these Cold Heading people a call, though I'm sure the answer will be something along the lines of "F' off unless you want to buy thousands of bolts". Maybe I'll just send an email and see where it goes.

Update: Fail

 

[broadicustomworks]

To my eye they are hot-dipped galvanized steel, but I'll admit I'm not exactly a metallurgy expert. Once it STOPS RAINING I'll go stick a magnet on them, should answer the question pretty quickly.

I'm tempted to give these Cold Heading people a call, though I'm sure the answer will be something along the lines of "F' off unless you want to buy thousands of bolts". Maybe I'll just send an email and see where it goes.

For anyone who has not had the pleasure of reusing these cargo tiedown bolts, be forewarned.
They are brittle.
IDK if it was the loosening and reapplication or what for me but:
I removed them to install the Tuffy/Ford offered security enclosure, reused them on the "feet" brackets.
4/8 of them snapped off in the body within 6 months with no abuse or tweaking of the enclosure.
The first one I noticed the head of the bolt lying in the enclosure and thought "Hmm. That's interesting."
Few months later noticed it was getting noisy back there with the enclosure creaking and rattling.
Found two more bolt heads that flew the coop.
At that point I got some stainless cap screw replacement bolts and just replaced all of them. The 4th one broke as I was taking it out.

Good thing is I was able to get the broken off sections of the old bolts out with no fuss with a small flathead, which means they were not seized, crossthreaded, or overtightened. Only one out of 4 required me to use an extractor.
They are soft. Brittle. FWIW I recommend replacing them.
I've had the replacements in and out now a few times with no fuss, no issues. (removed the security enclosure and then again later when I bought a slide drawer, and again when I bought a Slipstream).

 

[vrtical]

I have come to the conclusion I am just going to replace all the bolts with Titanium ones j/k

 

[Lowcountry Bronco]

I've heard of ID-10.t form but never a 010 bolt ... do you use left handed screwdriver for that?

 

[EvilJim1971]

The M10 bolts that hold the front seat in are also marked OIO.

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