Still havent seen a convincing reason
for the short thread at the top of
http://www.screwfix.com/prods/88716/
why oh why?

For my education, what please was unconvincing about the explanation
from the Axminster site that I posted please? (That was ""Upper thread
locks the top
board securely (No more squeaks)"

--
Robin
PM may be sent to rbw0{at}hotmail{dot}com