3mm may not be much but when it comes to wheel bolts it can mean a lot. Whilst investigationg the recent break down of BART I happened to find that the wheel bolts fitted to the car where the wrong ones for the wheels. They where too short by 3mm. Not only that some of the bolts had threads that where starting to strip. I daren't think about what would have happened if a wheel had actually detached itself at speed...yet another little corner cutting, poor attention to detail, engineering mistake that could have cost me...and not just money.
New 53mm bolt on the left and some of the stripped short bolts on the right.
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