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Discussion Starter · #1 ·
So I went to remove the flat head bolts on the roof and all it did was spin, now it wont tighten
are the original flat heads threaded? What the heck am I missing?
thank you
 

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MMXVI - L2H2 in IN
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Are you referring to the roof rack mounts?
73948
 

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Yeah


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2018 136 HR Ont.
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I don't think they are threaded. I believe they are designed to be rotated to mount racks. Drop a mount over the pin and rotate it to secure it. When I was considering a rack I made some brackets with ovals that would do that.
 

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MMXVI - L2H2 in IN
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I'm pretty sure they not threaded, I have not found a picture of one that is removed.

I have seen where someone will rotate it 90° so they can slide their mounting bracket in and then rotate it back to lock it in.

If I had to make an educated guess from this pic I would say the stud goes through the flat part and is peened over.
73962
 

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I have read that on a few posts before and also found out the same when I built my own roof racks. They will rotate but I found that I needed to put a wrench on them to move them easily. They rotate to allow different attachment configurations
 

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Wow, had no idea they were meant to rotate, knowing that might have made my life easier when building my roof rack. Really wonder if they are actually designed to rotate.
 

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2018 136 HR Ont.
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It seems to me they were meant to rotate, if not they would be welded in place. Hard to believe they rotate the way they do by accident.
 

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MMXVI - L2H2 in IN
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Being able to rotate may just be a by-product of how it's assembled. It appears to be a stud mounted to thick sheet metal, they could weld it but that would cost more to make :)

If by design then I would think the roof rack companies would use that function, but they don't.
 

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MMXVI - L2H2 in IN
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Never found any European sources that utilize that feature.
 

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2018 136 HR Ont.
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Being able to rotate may just be a by-product of how it's assembled. It appears to be a stud mounted to thick sheet metal, they could weld it but that would cost more to make :)
Manufacturing a rotatable pin simply cannot be cheaper than making a fixed pin. Think about the design and fabrication involved in making it rotatable and secure with the exact standoff on each one.
The fact that the rack companies were not smart enough to utilize the rotatable function doesn't mean anything. 🤷‍♂️
 

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MMXVI - L2H2 in IN
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In my mind I see a person inserting the pin upside down in a fixture, then placing the stamp steel part with a hole in the fixture and dropping a 20 ton hammer press to peen it over. So simple a sweat shop and a child could do it, what could be cheaper :)
Or something similar.
 

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In my mind I see a person inserting the pin upside down in a fixture, then placing the stamp steel part with a hole in the fixture and dropping a 20 ton hammer press to peen it over. So simple a sweat shop and a child could do it, what could be cheaper :)
Edit, I may have misunderstood what you meant.

It is difficult to peen a pin that accurately without distortion anywhere else in the pin. It likely would not maintain the exact tolerance/clearance needed to be able to rotate.
 

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MMXVI - L2H2 in IN
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Then it wouldn't rotate? :)
 

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I thought about rotating mine, but with my luck it pop out.
 
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