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What size wing nut do I need for ...
Posted: Mon Aug 01, 2016 12:06 pm
by neilbardsley
The filter nut on the top of my Weber 40 off kn filters I think. I bought some m6 which looked about the right size but they will not turn on!
Perhaps I'm being stupid and should of just got some m8s too
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Re: What size wing nut do I need for ...
Posted: Mon Aug 01, 2016 12:29 pm
by fetuhoe
They are much more likely to be Imperial as they are US made.
The typical Acorn Nut on a K&N is typically a #10-24 which is a UNC but this is only around 5mm diameter on the major thread diameter.
Can you measure the major diameter of the thread on the filters ? as the single wing nut is likely to be larger but still UNC.
Re: What size wing nut do I need for ...
Posted: Mon Aug 01, 2016 1:33 pm
by smallspeed
got a feeling the ones on our midget were 5/16-UNF when we replaced them, but might be the same.. 5/16 would be around 8mm I guess so if the M6 is too small it might be that size too
Re: What size wing nut do I need for ...
Posted: Mon Aug 01, 2016 2:59 pm
by neilbardsley
Well it's not a 1/4 inch either!!
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Re: What size wing nut do I need for ...
Posted: Mon Aug 01, 2016 5:25 pm
by 911hillclimber
The nuts that hold the rain guards on are 1/4 unf on my KN filters bought about 7 years ago.
