Word on the street is that prsmith@navnet.net said:
> I am in the process of removing bits and pieces form my '62 MGA. As I
> replace these items i would like to do so with new hardware. Can anyone
> tell me how to tell whether a British bolt of that era is of mild or
> hardened steel? There are some marks on the head of the bolts but I have
> not been able to find out what they mean.
I'm sure the list will correct me if I'm wrong, but I think three raised
radial lines on the head marks a bolt as Grade 5. You want to use at least
Grade 5 bolts and probably Grade 8 bolts on your car.
There are some other markings like interlocked circles that means something
but I'll be damned if I can remember what. Those might predate the A though.
I think it had something to do with the switch over from Whitworth.
Skye
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1966 MGB The MGB Experience __,__\__ Safety Fast!
GHN3L-70307 http://www.mgb.bc.ca/ (_o____o_) MGOFR 1.375
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