Are all Surf fasteners Metric?

[Bayside]

May seem a stupid question but Im ordering several hundred stainless nuts bolts and washers to replace my crusty rusty ones to rebuild my chassis with.

In the market for a thread / bolt gauge and dont want to waste money on an Imperial or other if not needed. Also will speed up my buying process.

Even better if someone has an idea of what the most common fasteners used on the Surf chassis and fittings are I can order accordingly saving some time.

[gary-r]

yes all metric - some have the fine pitch thread.

remember stainless bolts in A2 or A4 grade are not high tensile, high tensile stainless bolts are expensive.

[Bayside]

Thanks for reply.

The majority of the bolts etc I need to replace are for mounting hose and other brackets, bits of bodywork, the fuel tank, radiator.... blah blah all the little stuff that ends up with rounded heads and disolved bolts basically.

Ive managed to salvage and clean up the majority of the high tensile bolts for things such as the Torsion bar upper arm mount, diff mount etc.

I have all new bolts and nuts etc for my suspension as it all came with the poly bush, drop link and ARB kits.

Any particular high tensile bolts I need to be aware of other than the obvious weight bearing / stressed parts?

[Bayside]

Would A4-80 stainless be suitable for the tensile bolts?

It equats to the strenngth of 8.8 steel tensile.

Also the supplier Ive been looking at only quotes for one thread. Are the course and fine thread options common?

[Bayside]

I may have found the answer!!

What a faff that was getting from PDF to Jpeg so I could upload it.

Anyway found this in the workshop manual. In the first two colums it gives the diameter and thread pitch the majority of different bolts used seems to be here.

Im guessing that M6 (dia) - 1 (mm pitch) , M8 - 1.25, M10 - 1.25 and M12 - 1.25 are the most commonly used. It doesnt give lengths but thats the easy bit.

What do you think?