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MGDM4



Member Since: 28 Aug 2015
Location: Leeds
Posts: 45

United Kingdom 
Identifying Bolts and Nuts
Hi all,

Does anybody know how I can identify bolts and nuts?

There are several rust bolts and nuts holding the floor panel in, the seat box to the floor and the bulkhead to the body that could really do with replacing.

Pictures to follow.

Matt
Post #503907 12th Feb 2016 1:58pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6601

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Do you mean you want to find out the LR part numbers, or the generic type/size/dimensions?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #503910 12th Feb 2016 2:07pm
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MGDM4



Member Since: 28 Aug 2015
Location: Leeds
Posts: 45

United Kingdom 
Hi Martin,

Both would be great.

I'll probably just buy the new parts from a hardware store.

Matt
Post #503927 12th Feb 2016 2:51pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6601

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Have a look through the parts catalogue at http://new.lrcat.com/#!/1228

It's image-driven so you should be able to find the right part. A lot of the generic bolts and screws have sizing listed against them so it's handy even if you don't buy the part from LR or a LR parts place.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #503930 12th Feb 2016 3:03pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green

Click image to enlarge


Bought one of these when I was sorting out all my accumulated collection of bolts - excellent bit of kit Thumbs Up
Post #503937 12th Feb 2016 3:08pm
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gilarion



Member Since: 05 Dec 2013
Location: Wales
Posts: 5107

Wales 2007 Defender 90 Other CSW Trident Green
If you are replacing floor panel bolts and seat box bolts go for stainless steel bolts you will not regret it. For those who like Welsh Mountains and narrow boats have a look at my videos and photos at..

http://www.youtube.com/user/conwy1
Post #503955 12th Feb 2016 4:00pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Short term no, especially if you intend to lift frequently, but long term, your panels will suffer:


Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
Post #503969 12th Feb 2016 4:26pm
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MGDM4



Member Since: 28 Aug 2015
Location: Leeds
Posts: 45

United Kingdom 
I was planning on getting the replacement parts in stainless steel.

Why is it a bad idea?

They don't rust and when smeared in copper grease they won't seize.

Matt
Post #503986 12th Feb 2016 4:59pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

see the panel about and the two hole at bottom stainless bolts have cause this the corrosion by electrolysis. Exclamation

Last edited by dorsetsmith on 12th Feb 2016 8:05pm. Edited 1 time in total
Post #503989 12th Feb 2016 5:06pm
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gilarion



Member Since: 05 Dec 2013
Location: Wales
Posts: 5107

Wales 2007 Defender 90 Other CSW Trident Green
A lot of information about this, but one of my Defenders is a 200 TDi that has had stainless steel bolts fitted almost everywhere and after twenty years I have no evidence of corrosion by electrolysis. Maybe I have just been lucky like thousands of others who fit them.

Original steel bolts will do as much damage in my opinion but are a Censored to release once rusted up and seized. For those who like Welsh Mountains and narrow boats have a look at my videos and photos at..

http://www.youtube.com/user/conwy1
Post #503993 12th Feb 2016 5:17pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Rather a bizarre argument, if you are saying that because it hasn't happened to you it should be ignored?

If you think plain steel bolts will do as much damage then you are scientifically ignorant.

To be honest if this is the first time the OP has removed said panels then they have lasted 13 years. Give him the pros and cons and let him decide but don't say he won't regret it unless you plan to pay for new panels in 20 years if he then suffers.
Post #504032 12th Feb 2016 6:56pm
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Riccarton



Member Since: 10 Aug 2015
Location: Gods' Own Country
Posts: 280

Scotland 2012 Defender 90 Puma 2.2 HT Zambezi Silver
My advice would be to get some decent quality ZP fasteners and put plenty of copperslip on them before installation. They'll be there as long as your chassis and will always come undone.

At work all we use is stainless fasteners of every type and size so it would literally cost me nothing to replace every one on my 90. But I haven't and won't so perhaps that tells you something Thumbs Up

On the other hand - it's your LR and st st fasteners always look shiny - even if the rest of the car dissolves around them Rolling with laughter
Post #504077 12th Feb 2016 8:39pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8580

United Kingdom 
Some rather 'interesting' comments.

Aluminium does not rust however it will corrode. Aluminium oxide forms on the surface and to a certain extent can protect the underlying metal to a certain extent. Aluminium oxide in its worse case is a white powder

Basically any two dissimilar metals are likely to set up a galvanic cell and cause corossion!

Mild steel and aluminium will set up a galvanic cell as will stainless steel and aluminium. The difference is that stainless steel is further away from aluminium then mild steel is so any galvanic cell set up by stainless steel and aluminum will be a stronger cell then mild steel and aluminium

On our 96 110 there is galvanic corrosion and there are no stainless bolts on it. The doors are steel frame and ali skin and shows signs of galvanic corrosion.

Now throw salt into the equation, say from road salt or sea salt by being by the coast will make the electrolyte stronger and the galvanic effect stronger.

This effect is also time dependent as well


What can be done to stop galvanic corrosion? Stop it probably very little, however it can be slowed down. Ways of slowing it down? Electrical insulation such as plastic washers, use of anti corrosion paste such as Duralac.

Please note that Duralac is an anti galvantic corrosion paste it is NOT an anti seize paste however for stainless nuts and bolts.


Brendan
Post #504125 12th Feb 2016 9:47pm
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gilarion



Member Since: 05 Dec 2013
Location: Wales
Posts: 5107

Wales 2007 Defender 90 Other CSW Trident Green
Supacat wrote:
Rather a bizarre argument, if you are saying that because it hasn't happened to you it should be ignored?

If you think plain steel bolts will do as much damage then you are scientifically ignorant.

To be honest if this is the first time the OP has removed said panels then they have lasted 13 years. Give him the pros and cons and let him decide but don't say he won't regret it unless you plan to pay for new panels in 20 years if he then suffers.


Yes probably I am scientifically ignorant and I bow to your superior knowledge. I also wish I knew what it feels like to be right all the time… Bow down For those who like Welsh Mountains and narrow boats have a look at my videos and photos at..

http://www.youtube.com/user/conwy1
Post #504257 13th Feb 2016 11:37am
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Ryderoo



Member Since: 28 Aug 2015
Location: South Oxfordshire
Posts: 1666

England 2015 Defender 90 Puma 2.2 HT Santorini Black
gilarion, i am no Doctor or Professor, I think if you have taken precaution by using an industry standard anti corrosion jointing compound, your bolts should last. I have replaced all mine with stainless steel.

I think plain steel would have the same effects as it is a more noble metal than aluminium.

And what happens in a few years when your the zinc coating on your bzp's fail.

If you are happy with it and it had given you good service, why not recommend to another.

For reference:



Click image to enlarge


Wow look at the zinc coated nut and bolt on the left.

Is this still an "open" forum Cheers Simon

I can explain it to you, but I can't understand it for you

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Post #504264 13th Feb 2016 12:29pm
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