Wheel bolt length

BackintheFold · 20-03-21, 01:49 PM

Does anyone know the standard length for an ur wheel bolt please? Top to bottom-total length?
Thanks!!
I’ve been playing with my wheels. Those fitted had spacers (15mm) and long wheels bolts (70mm overall length) with tapered seating. I didn’t measure thread length. Will do tomorrow.
I think these may have been fitted with the other set of wheels the car had.

I now have the original Ronals Fitted with a full set of radius seating 27mm thread length bolts-which i believe are correct but any confirmation welcome!
I have put the others on the MB (where I sourced the right bolts. )
But they need to be changed, so I want to get the right size.

Thanks for any input.

SorenR · 20-03-21, 04:22 PM

Get your wheel, add the optional spacer, put in the bolt - if you got 1/2 to 1/1 the diameter of the bolt with thread free on the inside you are OK to go.

That rule has kept wheels on my cars for daily drive and trackdays ;-)

mikes2 · 20-03-21, 08:50 PM

they're 27.5mm thread length

BackintheFold · 20-03-21, 10:09 PM

Great. Thanks.
I will get some 45mm length M14 1.5 thread, 17mm spanner size, radius bolts ordered.
Those should fit the wheels/spacer combo.

Sent from my iPhone using Tapatalk

20-03-21, 08:50 PM	#3
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	they're 27.5mm thread length __________________ 1991 90 quattro 20v sport 1991 90 quattro

20-03-21, 10:09 PM	#4
BackintheFold Senior Member Classic Audi Club Member Join Date: Feb 2019 Location: Near an MB ur Quattro Posts: 1,190	Great. Thanks. I will get some 45mm length M14 1.5 thread, 17mm spanner size, radius bolts ordered. Those should fit the wheels/spacer combo. Sent from my iPhone using Tapatalk __________________ 2006 A3 (daily drive) 1987 MB ur

20-03-21, 04:22 PM	#2
SorenR Grown up member Join Date: Oct 2010 Location: Vesterlyng/Föllenslev, Denmark Posts: 563	Get your wheel, add the optional spacer, put in the bolt - if you got 1/2 to 1/1 the diameter of the bolt with thread free on the inside you are OK to go. That rule has kept wheels on my cars for daily drive and trackdays ;-)