M7 bolts for thermostat / dizzy housing

[Bassman 1]

Hi,

 

Finally getting around to putting my GTi back together after having the head welded and skimmed (last year!).

 

When I removed the housing for the dizzy / thermostat, I had snapped one of the M7 hex head bolts.  There are also two others that are pretty rusty as well that I would like to replace.

 

The problem is that finding a fully threaded M7 (1.0mm pitch) that is 55 or 75mm in length is seemingly impossible.  I have ordered a 60mm bolt to replace the snapped one, but no one seems to have anything longer than 70mm in stock.  I have tried fastener suppliers and online.

 

Pug obviously don’t make them anymore so they can’t help.

 

Any suggestions? 

 

Thanks

 

Rob

[PhilNW 44]

m7 Threaded bar and nut or drill  for M8 bolt?

[Ozymandis 97]

I use Imperial threaded cap head allen screws with a long plain shank, they are a similar diameter and I run an M7 die nut up them.

Its not like they are anything to do with highly stressed parts.

I cant remember what size they are without checking, probably BSF or cycle thread. I inherited them from a British bike business.

 

[Biggles 65]

Spalding Fastners do M7 up to 70mm long https://www.spaldingfasteners.co.uk/m7-metric-8-8-grade-zinc-plated-hexagon-head-fully-threaded-set-screws/

[Bassman 1]

1 hour ago, Biggles said:

Spalding Fastners do M7 up to 70mm long https://www.spaldingfasteners.co.uk/m7-metric-8-8-grade-zinc-plated-hexagon-head-fully-threaded-set-screws/

Yes, I bought a 60mm from them to replace the broken 55mm which I fitted today.

 

 There is only around 10mm of the bolt going into the head, so I would rather have a full 75mm.  

 

I have an M7 die on its way so will clean up the other two bolts and refit.

 

Why do Pug have to use such odd fasteners!  Thanks for all the advice.

Edited September 12, 2019 by Bassman

[Biggles 65]

Because they're French ?... 

 

Been running French stuff for nigh on 30 years now and am still cursing them.  They're not alone though - deepened a sump some years ago and ended up using some Volvo bolts for the extended pickup - they were M7 too but longer than the OE ones.

[petert 588]

The French think the British are odd! Who puts two sizes on one spanner?

 

[farmer 328 1 Cars]

I sourced a few of the bolts from abroad from dealers 

 

They were particularly expensive on the RRP