Hello
These two screws sit in the mechanism bellow the gear shift as you see in the picture. What type and number are they? Is there somewhere else in the landy that they are used so I can take one and use it here? In adding a reverse light I have managed to mess up one. I have spent the entire afternoon searching for them and they can not be found in any shop.
Thanks in advance.

According to the manual they're part 622281, which is 0.25 BSF x 0.40625 long. They are listed by John Craddock:

https://www.johncraddockltd.co.uk/l...ivel-pin-housing-s1-and-stg-relay-filler.html

but I'm not sure how easy it will be to find BSF screws in Canada...

Thank you very much ExMil109. Are these bolts used anywhere else in a S3?

Front hub swivel oil seal retainer ring I believe are 1/4 BSF maybe slightly shorter but you can use one for now.
This seller will deliver to Canada
https://www.ebay.co.uk/itm/1-4-BSF-...2ad473b3b8:m:myjembGhouW3W3_0HbsiV0A#shpCntId

Thank you very much

As a guide the threads are "mostly" UNF with some UNC but the transmission and axles predate the change over from Whitworth and BSF to Unified and seem to have stayed with those threads. I recently wasted some time trying to make a 7/16 AF spanner fit the gearbox sump bolts on my 1970 LWB, they were of course 1/4 BSF which is ever so slightly bigger. Should know by now! One fall back is to buy 1/4 UNFbolts with a longer shank, saw off the thread and die it BSF, its a bodge because the spanner will be AF and every owner after you (or you if you have my memory) will be baffled then annoyed but it gets you back on the road and you can swap the correct bolts in next time. 1/4 BSF is very common on 1950's and 60s British motorcycles so you could try there.