Wheel bolts

Has anyone change to some aftermarket wheel bolts? One of mine snapped when I was putting a wheel back on. I think they must be made of butter as it was only halfway screwed in. Having looked at the others they all look crap.

Has anyone got a link to some aftermarket ones? Or know the size so I can look for some?

Cheers Guys
 
Not sure where to get some from, but make sure you buy "branded" ones (like it looks like you're planning on doing), as someone lost a wheel on track at CSOC Weekender due to cheapo bolts.