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Why I choose not to use stainless bolts
Posted: Fri May 12, 2017 3:06 am
by cobbadiggabuddyblooo
Below is a photo from one of the OEM Yamaha grade 2 carbon steel engine case bolts from the bottom engine pan. Once the work was done, and tightening up to 10Nm I could feel the bolt stretching so I removed it straight away and just in time.
Hardened steel and even stainless has a tendency not to yield as much and just snap or gall the thread to cause more problems.

Re: Why I choose not to use stainless bolts
Posted: Fri May 12, 2017 7:35 am
by Tarwetijger
Re: Why I choose not to use stainless bolts
Posted: Fri May 12, 2017 7:36 am
by Con Rod
yes I would tend to agree for thinks like your sump plugs, mounting bolts, caliper bolts etc, but for you standard cap screws for the clutch etc stainless is great for its properties
Re: Why I choose not to use stainless bolts
Posted: Fri May 12, 2017 9:27 am
by cobbadiggabuddyblooo
I've been reminded it's a screw not a bolt....

Re: Why I choose not to use stainless bolts
Posted: Sun Aug 20, 2017 7:41 am
by GDTA
A screw is conical,a bolt is not,its a common misuse of a word
Re: Why I choose not to use stainless bolts
Posted: Sun Aug 20, 2017 11:55 am
by dandywarhol
And a setscrew is threaded all the way whereas a bolt has a plain portion before the thread
Re: Why I choose not to use stainless bolts
Posted: Sun Aug 20, 2017 1:11 pm
by andyaber
A screw is only conical if we are talking woodwork, self tappers or diy. Here we are talking engineering where a screw is threaded all the way to the head, (a set or grub screw is headless) and a bolt is threaded for part of the shaft and plain up to the had.
Re: Why I choose not to use stainless bolts
Posted: Sun Aug 20, 2017 1:25 pm
by andyaber
Wouldn't it be good if Usain Bolt had a brother called Allen?
Re: Why I choose not to use stainless bolts
Posted: Mon Aug 21, 2017 7:18 am
by cobbadiggabuddyblooo
He has a cousin called caphead
Re: Why I choose not to use stainless bolts
Posted: Mon Aug 21, 2017 12:00 pm
by Rod.s
or Phillip
Re: Why I choose not to use stainless bolts
Posted: Mon Aug 21, 2017 1:10 pm
by andyaber
Didn't want to hi jack the THREAD with any COARSE humour but i think i PITCHed it just right.
Re: Why I choose not to use stainless bolts
Posted: Mon Aug 21, 2017 1:20 pm
by Racer-unk
I am not H-phobic, but just to let you know....Phillip is not straight!