Whilst rebuilding one of our engines I noticed that the screws and bolts I had removed seemed to be a motley collection, some varying in size by as much as half an inch. I therefore came to the conclusion that it was either rebuilt at some time by a short sighted Gorilla on a foggy day or that it was an original factory built engine. I remember being told some years ago by a delivery driver, that he had worked at BL in the seventies and if they ran out of one size bolt they would use one from the next bin. This however would only end up with a quarter of an inch discrepancy.
I have made a table of the screws and bolts in the HU - HB series extrapolating from the sizes offered by suppliers and I hope I have found the numbering sequence (chart attached). If any one has the original listing I would like to check if I am correct. There are other parts with six figure numbers which I have yet to figure out. I know that the garages did not know the specification of fixings merely getting new parts from numbered bins. Any information allowing the car to be re-assembled with vaguely the correct parts would alway be welcome.
Barry
PS I have edited the bolt table file after looking at the Hardware Catalog, a few errors around the 4" lenghts
I have made a table of the screws and bolts in the HU - HB series extrapolating from the sizes offered by suppliers and I hope I have found the numbering sequence (chart attached). If any one has the original listing I would like to check if I am correct. There are other parts with six figure numbers which I have yet to figure out. I know that the garages did not know the specification of fixings merely getting new parts from numbered bins. Any information allowing the car to be re-assembled with vaguely the correct parts would alway be welcome.
Barry
PS I have edited the bolt table file after looking at the Hardware Catalog, a few errors around the 4" lenghts
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