nut and bolt identification

[tr7dan]

Re: '81 UK DHC

Has anyone compiled a list of nut, bolt and washer sizes and threads against part nos.?

The parts book just lists 'nut' or 'bolt' or 'washer' but seldom states what size or thread.

Also, would they mix metric and imperial on the same fastener? I noticed on the front bumper cover fixing the bottom bolt on the end cover has nut GHF212 which, if Googled, suggests M6 but on the same bolt, washer GHF300 is listed.... which seems to be 1/4 x 1/2in OD !

Dan

[Beans]

On a '81 car all fasteners are metric except engine + ancillaries and back axle pick-up points.
As for the list, get yourself a workshop manual. All sizes are listed there [;)]

<center>
<font color="blue"><i>1976 TR7 FHC (needs some TLC ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng
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[tr7dan]

OK, got that

cheers

Dan

[Neil_W]

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by tr7dan</i>

Re: '81 UK DHC

Has anyone compiled a list of nut, bolt and washer sizes and threads against part nos.?

The parts book just lists 'nut' or 'bolt' or 'washer' but seldom states what size or thread.

Also, would they mix metric and imperial on the same fastener? I noticed on the front bumper cover fixing the bottom bolt on the end cover has nut GHF212 which, if Googled, suggests M6 but on the same bolt, washer GHF300 is listed.... which seems to be 1/4 x 1/2in OD !

Dan
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Dan - you can download a factory manual from below link which lists all nut & bolts from page 8 onwards

http://www.tr7.co.uk/pdfs/TR7.pdf

[tr7dan]

Ok, thanks.

Is it advisable/ preferable to replace any nuts that have rusted with stainless steel nyloc type instead of using ordinary nuts and spring washers where required? I am talking about general fasteners for non stressed items like lighting, bumper mounting, brackets, etc.

I have a very good and cheap supplier close to where I live so cost is not an issue

Dan

[Beans]

Unless you use some sort of non conductive grease on the threads I wouldn't do it.
Because if you don't you'll get contact corrosion between steel bolt and stainless nut.
I'd stick to normal plated steel nuts and a suitable anti seize grease on the threads.

<center>
<font color="blue"><i>1976 TR7 FHC (needs some TLC ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng
</font id="blue"><b>[url="http://www.tr7beans.blogspot.com/"]<u><b><font size="3"><font color="red">My full Blog</font id="red"></font id="size3"></b></u>[/url]</b></i></center>

[tr7dan]

Thanks Beans

I was more wondering whether a nyloc type nut was a good replacement for a plain nut and spring washer?

Dan

[dursleyman]

I would generally say yes unless its anywhere that gets hot.
Only problem I have with nylocks is they are harder to get on and off because you cannot spin them by hand, its a spanner all the way.

Russ

1980 TR7 Sprint DHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

[FI Spyder]

When I use ss fasteners on the lower part of the rubber bumpers (or elsewhere) I use blue Loctite to separate the metals and to lock them into place to compensate for possible less compression of old rubber. I haven't tried taking one out of the front (done 6 years ago) but it's got to be better than letting things rust together.

- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT