Join Date: May 2008
Location: United Kingdom
Whilst I'm not going to disagree with what David said (he's usually right about just about anything), although the length of the bolts will be correct that does not necessarily mean they'll fit ok.
A few years back I switched from 15"ers on my 156 to 16"ers at Autolusso. I used my nice shiny bolts off of the original alloys and drove off happy, until there was a bit of a shudder through the steering further down the road. I stopped and discovered the bolts had worked loose.
Assuming I'd forgotten to tighten them I tightened them up and drove back towards Autolusso, only to find they were loose again when I got there.
Spent 20 mins or so scavenging up some bolts off of 16" wheeled cars until there was a full set, did them up, and when I sold the car they were still nice and tight.
There was NO visual difference between the bolts, I can only assume the shoulder was a microscopically different angle.