A couple of detecting trips ago I found definitive proof of their purpose, but before I share the factual account of their use I thought I should run a poll to have a bit of fun
Anolphart said:It's actually a petrified tapeworm that got twisted in the bowels.
Rockhunter62 said:Endless screw. We used to use it in the military to repair cracked rifle stocks.
Fastening wooden items, etc.
Cheers
Doug
Keith1 said:It looks more like a worm drive than a fastener - is it small enough for a pocket watch winder???
cheers
Keith
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