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[Kneepad]

Why do we still call them nuts 

One of the wheel bolts has cross threaded and I can't tighten it, does anyone know what size of Tap I will need to clean out the threads on the hub.

[lee4206]

Its  M12x1.5.
Lee

[Andy B]

Why do we still call them nuts 

One of the wheel bolts has cross threaded and I can't tighten it, does anyone know what size of Tap I will need to clean out the threads on the hub.

not off hand, but IIRC it's a metric fine. I've a bucket full of standard metric taps & I didn't have one that fitted. I'd to borrow one from a local garage when No 1 Son said he didn't use my windy gun to put his wheel back on his car.

[Kneepad]

Its  M12x1.5.
Lee

Thanks for the speedy reply Lee 

[Kneepad]

when No 1 Son said he didn't use my windy gun

 

Thanks Andy, if it's metric fine, then I'll also be out begging or borrowing.

[Andy B]

when No 1 Son said he didn't use my windy gun

 

Thanks Andy, if it's metric fine, then I'll also be out begging or borrowing.

It's funny how you forget when you don't use them everyday. I can remember that tapping size for standard M12 is 10.2 mm which after I've Googled it  .... http://www.efunda.com/designstandards/screws/screwm_coarse.cfm shows that M12 is 1.75mm pitch. As Lee pointed out, a wheel bolt is 1.5mm pitch, so it looks like you'll have to cap in hand tomorrow!     

[Andy B]

having had a nother Google, you have a choice of 1.0 1.25 1.5 1.75 mm pitch M12 threads, I knew there were a few, but couldn't remember    

http://www.engineeringtoolbox.com/metric-threads-d_777.html

[Kneepad]

Cheers Andy, thanks for taking the trouble, a couple of good reference sites there. Now bookmarked.