SOHC.co.uk Forums > CB750

fork clamp bolt sizes

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dazm:
Hi,

Anyone know the correct sizes for the bolts and studs for the fork clamps on a 78F2?. Or better still, can anyone point me in the direction of somewhere to purchase replacement stainless hex headed ones?

Many thanks daz

MarkCR750:
I'd be wary of using stainless bolts in clamps unless they are stainless as standard, high tensile steel bolts are usually used in such applications, David Silver spares will sell you original Honda bolts for pence, I just got a a set of brake arm bolts for about 70p each from him, not stainless but plated they shouldn't rust for a few years.

MarkCR750:
True, I could be wrong about HT, I was in a bolt suppliers recently, the owner is restoring Z1, someone came in and asked for stainless bolts for his brake callipers, the owner wouldn't sell him any, he said stainless is to soft, that said I guess there are different grades of stainless etc and maybe it would be ok in fork clamps, I would just use original standard bolts myself in safety related applications.

Trigger:
There is 2 basic types of stainless A2 and A4. A2 are very soft but, polish up nice.

neilb:
If you want to be sure and have your mind at rest go for a grade 8.8 carbon steel bolt, probably get them from screwfix. They will be marked on the bolt head.There isnt really any tensile loading on a fork clamp so a stainless A2 or A4 would probably be ok.

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