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General => General discussion => Topic started by: Bellend on 07 June 2012, 23:21

Title: Bolt geeks
Post by: Bellend on 07 June 2012, 23:21
So I need some bolts for a Kango as someone borrowed it and some vibrated loose and have gone missing and the few that were left, I THINK were overtightened and the shock of the Kango sheered them.

There's 8 fairly long M4/M5 bolts. What sorta tensile and type of bolt do we think they should be?

They are holding the base of the hammer against the chisle so do take a bollocking.

No idea what to order and Kango have been bought out and I can't find the correct spares!

Cheers. :)
Title: Re: Bolt geeks
Post by: Ant1981 on 07 June 2012, 23:22
Possibly unbrako, with threadlock or spring washers. Got a photo?
Title: Re: Bolt geeks
Post by: Ant1981 on 07 June 2012, 23:24
Oh and this is a good thread  :grin: teehee  :embarassed:
Title: Re: Bolt geeks
Post by: Bellend on 07 June 2012, 23:28
No photo but basically like this:
(http://www.boltmeup.com/ekmps/shops/boltmeup/images/100-x-m4-x-50-stainless-socket-allen-cap-bolts-10840-p.jpg)

No washers.

Just don't want to put weak bolts in it and it break on site as it did yesterday and had to go hire one!
Title: Re: Bolt geeks
Post by: Ant1981 on 07 June 2012, 23:35
If you can't find a spec, you could get some high tensile ones, probably fixed with threadlock if there's no washers, as something's got to stop them from shaking lose.
Title: Re: Bolt geeks
Post by: bob23 on 08 June 2012, 02:21
It should say on the head of the bolt what thread and tensile they are, it'll a tensile strength of 8.8, 10.9 or 12.9, and the thread will most likely be a medium thread 1.25, it could be fine 1.0 or course 1.5, but I'd say it is most likely to be medium.

I'd just put 12.9 in as they are the strongest, so I'd say 12.9 1.25, if you have a bolt just take it to a good hardware place and ask them to tell you what it is, even if they don't have them they should be able to tell you where to get them
Title: Re: Bolt geeks
Post by: Bandit127 on 08 June 2012, 05:32
It should say on the head of the bolt what thread and tensile they are, it'll a tensile strength of 8.8, 10.9 or 12.9, and the thread will most likely be a medium thread 1.25, it could be fine 1.0 or course 1.5, but I'd say it is most likely to be medium.

I'd just put 12.9 in as they are the strongest, so I'd say 12.9 1.25, if you have a bolt just take it to a good hardware place and ask them to tell you what it is, even if they don't have them they should be able to tell you where to get them
^^^ Is the right answer. 12.9 are the highest spec for tensile strength. Unbrako are a reputable make so these are preferred but don't get hung up on that make if you can't get them - any 12.9 bolt should have a strength of 1200 MPa.

For shock loading, bolts loose 50% of their strength over a million cycles. On a Kango this could be just days or weeks.

Having learned the hard way - and for complicated reasons - they last much better if they are torqued up correctly. 

LOL - does that qualify me as a bolt geek?
Title: Re: Bolt geeks
Post by: justalex81 on 08 June 2012, 06:51
on old bexley lane just off the junction for dartford on the a2 there is an entire shop dedicated to nuts and bolts. you'll get all you need from there.
Title: Re: Bolt geeks
Post by: jeynesey on 08 June 2012, 12:28
Oh and this is a good thread  :grin: teehee  :embarassed:

Screw this. I'm bored. :lipsrsealed: :lipsrsealed:
Title: Re: Bolt geeks
Post by: dom on 08 June 2012, 12:38
Oh and this is a good thread  :grin: teehee  :embarassed:

Screw this. I'm bored. :lipsrsealed: :lipsrsealed:

You'd better bolt then :wink:
Title: Re: Bolt geeks
Post by: Adam on 08 June 2012, 15:35
Oh and this is a good thread  :grin: teehee  :embarassed:

Screw this. I'm bored. :lipsrsealed: :lipsrsealed:

You'd better bolt then :wink:

(http://i.telegraph.co.uk/multimedia/archive/01383/usain-bolt_1383096c.jpg)

Winner
Title: Re: Bolt geeks
Post by: Bellend on 08 June 2012, 15:46
Cheers guys will get some from a local shop in Dartford.
Title: Re: Bolt geeks
Post by: Thom89 on 08 June 2012, 17:54
I think NASA may have some spare, they are the same as Space Shuttle tile fixings bolts... so will be fine :grin:

Thom
Title: Re: Bolt geeks
Post by: clipperjay on 08 June 2012, 18:03
I've got a bolt collection have every bloody bolt, rusty, smelly, green, funky, disco, short, hairy :grin:
Anyone wanna see my bolt collection I have two collections Good and Rusty can provide pictures for the mentally bored on here  :drool:
Title: Re: Bolt geeks
Post by: Thom89 on 08 June 2012, 18:06
I've got a bolt collection have every bloody bolt, rusty, smelly, green, funky, disco, short, hairy :grin:
Anyone wanna see my bolt collection I have two collections Good and Rusty can provide pictures for the mentally bored on here  :drool:

Can you show me your puppies

Thom
Title: Re: Bolt geeks
Post by: clipperjay on 08 June 2012, 18:08
I've got a bolt collection have every bloody bolt, rusty, smelly, green, funky, disco, short, hairy :grin:
Anyone wanna see my bolt collection I have two collections Good and Rusty can provide pictures for the mentally bored on here  :drool:

Can you show me your puppies

Thom

Rusty or non rusty Thom ?
Title: Re: Bolt geeks
Post by: bobotheclown on 08 June 2012, 19:27
Oh and this is a good thread  :grin: teehee  :embarassed:

Screw this. I'm bored. :lipsrsealed: :lipsrsealed:

You'd better bolt then :wink:

you guys are just nuts.
Title: Re: Bolt geeks
Post by: thai-wronghorse on 09 June 2012, 00:16
I must admit i'm finding this thread truly riveting.  :rolleyes:
Title: Re: Bolt geeks
Post by: Jord_GTI on 09 June 2012, 01:10
I must admit i'm finding this thread truly riveting.  :rolleyes:


Then you must have a screw loose.
Title: Re: Bolt geeks
Post by: jeynesey on 09 June 2012, 09:15
I must admit i'm finding this thread truly riveting.  :rolleyes:

 :grin: :grin: :grin: :huh:
Title: Re: Bolt geeks
Post by: clipperjay on 09 June 2012, 14:39
Its possible to get your thread crossed with the nonsense going on  :huh:
Title: NAME THAT BOLT?
Post by: clipperjay on 10 June 2012, 09:31
This goes out for Sam who hates bolts  :grin:
Thom becarefull what you ask for  :tongue:
Find and bolt and tel me where it goes!
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030319.jpg)
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030323.jpg)
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030322.jpg)
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030321.jpg)
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030320.jpg)
(http://i202.photobucket.com/albums/aa51/Clipperjay/misc/P1030324.jpg)
Title: Re: Bolt geeks
Post by: archie837 on 10 June 2012, 09:45
Ooo oooo I spy a battery retainer!
Title: Re: Bolt geeks
Post by: clipperjay on 10 June 2012, 09:46
 :grin: yes still needs to go back on!
I'm determined not too let this thread go to waste  :lipsrsealed:
Title: Re: Bolt geeks
Post by: madmanluke on 10 June 2012, 10:04
These rant the three bolts that go through the gearbox mount are they?

we have had a kangoo sheer these over 4 times now.
Title: Re: Bolt geeks
Post by: clipperjay on 10 June 2012, 10:11
These rant the three bolts that go through the gearbox mount are they?

we have had a kangoo sheer these over 4 times now.

Do you have solid mounts?
Title: Re: Bolt geeks
Post by: cняis on 10 June 2012, 11:47
Bumper bolts and alternator tensioner bolt too (the one where the cog always strips)
Title: Re: Bolt geeks
Post by: JC on 10 June 2012, 12:51
jay, yours are far to neat, i just have a drawer to " store " fixings etc

(http://i427.photobucket.com/albums/pp359/chuffs69/DSCF4592.jpg)

 :tongue:
Title: Re: Bolt geeks
Post by: clipperjay on 10 June 2012, 13:05
Bumper bolts and alternator tensioner bolt too (the one where the cog always strips)

The shiny one is smaller can't remeber what goes on that possible 8V the larger one 16v 90a alternator and yes they do strip quite easily Chris!

jay, yours are far to neat, i just have a drawer to " store " fixings etc

(http://i427.photobucket.com/albums/pp359/chuffs69/DSCF4592.jpg)

 :tongue:

Nice! great minds hoard alike  :grin:
I have a few more boxes don't want to seem greedy  :laugh:
You got about £100 just sitting in the middle of that draw  :lipsrsealed:
Title: Re: Bolt geeks
Post by: JC on 10 June 2012, 13:47
 :grin: i know, might get a safety deposit box to put it in  :laugh: that rare apparently  :laugh:
Title: Re: Bolt geeks
Post by: clipperjay on 10 June 2012, 13:53
Well you know going to shows these days people remove them before going and BBS caps :lipsrsealed:  :sad:
I think the most useful ones are starter motor bolts and PAS ones I'm constantly surprised what VAG can charge just for rivits and bolts even rear speaker metal caps that go over the crappy hollow nuts  :rolleyes: