Why I choose not to use stainless bolts

Please share your secrets! What mods have you made to your TRX?

Moderators: trixynut, Mincehead, dicky, phuk72, Jak, Kevtrx849

Post Reply
cobbadiggabuddyblooo
Site Sponsor
Posts: 6809
Joined: Thu Aug 28, 2008 9:19 am
Location: Brisbane,Australia

Why I choose not to use stainless bolts

Post by cobbadiggabuddyblooo » Fri May 12, 2017 3:06 am

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.




Image
laughter is the best medicine

User avatar
Tarwetijger
TRX-Enthusiast
Posts: 1537
Joined: Tue May 15, 2007 9:31 am
Location: Netherlands, Assen
Contact:

Re: Why I choose not to use stainless bolts

Post by Tarwetijger » Fri May 12, 2017 7:35 am


User avatar
Con Rod
Site Sponsor
Posts: 1126
Joined: Wed Nov 16, 2011 11:48 pm
Location: Sydney, Australia

Re: Why I choose not to use stainless bolts

Post by Con Rod » Fri May 12, 2017 7:36 am

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
Paul

cobbadiggabuddyblooo
Site Sponsor
Posts: 6809
Joined: Thu Aug 28, 2008 9:19 am
Location: Brisbane,Australia

Re: Why I choose not to use stainless bolts

Post by cobbadiggabuddyblooo » Fri May 12, 2017 9:27 am

I've been reminded it's a screw not a bolt.... :lol: :lol:
laughter is the best medicine

GDTA
TRX-Enthusiast
Posts: 1
Joined: Wed Jun 28, 2017 12:22 am

Re: Why I choose not to use stainless bolts

Post by GDTA » Sun Aug 20, 2017 7:41 am

A screw is conical,a bolt is not,its a common misuse of a word

User avatar
dandywarhol
Site Sponsor
Posts: 1639
Joined: Fri Nov 24, 2006 12:56 pm
Location: Edinburgh, Scotland

Re: Why I choose not to use stainless bolts

Post by dandywarhol » Sun Aug 20, 2017 11:55 am

And a setscrew is threaded all the way whereas a bolt has a plain portion before the thread
1996 TRX 850, blue, Ohlins 46HRCLS, Race Tech Gold Valves, 0.90 springs, Venom pipes, R6 brakes............
1974 Yamaha RD250A, Candy Blue
1998 Yamaha SZR660, blue of course
1967 Yamaha TD1C 250, Blue and white

andyaber
Site Sponsor
Posts: 341
Joined: Mon Nov 08, 2010 4:22 pm
Location: South Wales uk

Re: Why I choose not to use stainless bolts

Post by andyaber » Sun Aug 20, 2017 1:11 pm

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.

andyaber
Site Sponsor
Posts: 341
Joined: Mon Nov 08, 2010 4:22 pm
Location: South Wales uk

Re: Why I choose not to use stainless bolts

Post by andyaber » Sun Aug 20, 2017 1:25 pm

Wouldn't it be good if Usain Bolt had a brother called Allen?

cobbadiggabuddyblooo
Site Sponsor
Posts: 6809
Joined: Thu Aug 28, 2008 9:19 am
Location: Brisbane,Australia

Re: Why I choose not to use stainless bolts

Post by cobbadiggabuddyblooo » Mon Aug 21, 2017 7:18 am

He has a cousin called caphead
laughter is the best medicine

User avatar
Rod.s
Site Sponsor
Posts: 1404
Joined: Sun Apr 25, 2010 11:01 am
Location: Brisbane, Australia

Re: Why I choose not to use stainless bolts

Post by Rod.s » Mon Aug 21, 2017 12:00 pm

or Phillip
If it's not made in China, it's a fake!

andyaber
Site Sponsor
Posts: 341
Joined: Mon Nov 08, 2010 4:22 pm
Location: South Wales uk

Re: Why I choose not to use stainless bolts

Post by andyaber » Mon Aug 21, 2017 1:10 pm

Didn't want to hi jack the THREAD with any COARSE humour but i think i PITCHed it just right.

User avatar
Racer-unk
TRX-Enthusiast
Posts: 286
Joined: Fri Mar 03, 2017 5:28 am
Location: Port Elizabeth, South Africa

Re: Why I choose not to use stainless bolts

Post by Racer-unk » Mon Aug 21, 2017 1:20 pm

I am not H-phobic, but just to let you know....Phillip is not straight!

Post Reply