This is an Australian twin SU wingnut, the UK ones are very similar, but are a little more substantial in the "wings" (ie. the metal is a little thicker at this point).

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

How about this one,



Where or on what should this be used

Cheers
Steve

Looks like a standard wingnut for one application or the another. Could be a modified standard wingnut to replace the original.

This is an English twin SU wingnut, it's one of two that came with the box. The previous owner wasn't including them but went to the effort of sourcing them for me. It's hard to spot, but the wings are more substantial than the Oz items and a little different in shape.

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

This is the final drum from some extra research I've been doing. The wrap up is that the airboxes were the same depth up until the mk2 version with the cutaway was introduced.

It is at this point that the English made their boxes 1/4 inch (6mm) thinner to allow the unit to be removed and replaced without hitting the scuttle. The Australian airbox remained the same depth, even though they went to the effort of creating a new pressing with the cutaway Mk2 version. I would presume this is so as not to take away from the air filter's capacity in the dusty Oz conditions.

Well there you go....I would never have have known if I was after a normal mk1 version....

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.