Camlock vs dzus

Good that you got them separated. I suggest that a look in the appropriate Vol 3 spares manual would be your best way forward to a likely I.D. 

short update – after soaking over night it separated into two of three parts.

The shaft – with a collar that is still attached. The collar went around the hole in the fairing – the shaft moved down against a spring.

Second part is a tapered alloy tube with stepped base.

So from the diagrams – looks like a Camloc with flanges that went into the two parts.

So were these used on Typhoon fairings ?

Thanks for  your interest.

Thank you chaps – I have a Spitfire Mk1 cowl that has the hole for a fastener and a Fairey stamp and 30028 part number – so I assume it came with a Fairey fastener and it is too large diameter.

This one has a diameter of 16.5 mm at the main barrel. It has a steel slotted internal barrel that is attached through a steel shaft to the parallel steel bar.  Which sits in the stepped slots in the base- like the bottom of the camlock fastener. My assumption is that there is a spring inside and pushing down on the steel barrel and rotating it – moves the parallel steel bar.

It is not for moving but there is a void under the lip of the steel slot and the upper edge of the outer barrel has teeth around the diameter.

If anything it looks like a camlock but with the bottom housing included…

It was from a fairing  that was supposed to be from a Hawker Typhoon. I just cant see its shape on the Typhoon so was double checking via the fastener to see what it may be . I attach some further pics

There are no rivets on the edges of the holes in the fairing that would have held a fastener structure.

Fairey Type 1

Amal fastener

I can’t tell the size from the picture, but it looks to me like the remains of a Fairey fastener, minus its flange.  Which could also explain the RAF green paint.

It also looks a bit like the click-washer of an Amal fastener.