On Thu, 1 Dec 2005 18:32:21 UTC, Andy Wade
wrote:

Dave Plowman (News) wrote:

None of those are the type I'm thinking of. They're made out of thin strip
steel bent to a U shape and clip over a sheet metal edge.

That's a spire nut, innit? (Spire being one of those proprietary names
that's acquired generic status.)

'Speed nut' is the name I've always used. I guess we could start calling
them Clarksons..

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