Making a bolt

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amulheirn
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Making a bolt

Post by amulheirn » Thu Oct 18, 2018 2:04 pm

It'd be nicer if they put a bit more explanation on this video, but here's how Redbull make and test their bolts:


youtu.be/iptAkpqjtMQ

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clive
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Re: Making a bolt

Post by clive » Thu Oct 18, 2018 4:45 pm

... And the cost of that bolt??? :shock: :shock: :shock:
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amulheirn
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Re: Making a bolt

Post by amulheirn » Thu Oct 18, 2018 5:30 pm

Probably needs a special spanner too!

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StewbieC
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Re: Making a bolt

Post by StewbieC » Fri Oct 19, 2018 1:40 pm

Laser marking is pretty shite!
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clive
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Re: Making a bolt

Post by clive » Fri Oct 19, 2018 1:50 pm

Should be marked 8.8
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peterc
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Re: Making a bolt

Post by peterc » Sat Oct 20, 2018 2:09 pm

Guys, let’s be fair this wasn’t a simple bolt.
Squared headed with an undercut between thread and shaft to ensure nut tightens fully but no thread left in the working dia of the bolt shank. I have had to draw up and get a few of those made in my time.
Also we don’t know the material either so it might not be a standard 8.8 strength.
Ali ? Titanium ? St Stl?
Looked like it went into stress relieving but didn’t see a hardening process although they checked the hardness after checking the thread profile.
Yes, one of many rather special bolts.
Peter C

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amulheirn
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Re: Making a bolt

Post by amulheirn » Tue Oct 23, 2018 12:28 pm

If I wanted to make sure my nuts didn't come off, I'd definitely have them attached with an undercut shaft on a bolt like this.

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