Does anyone happen to know how many 10 mm bolts I would need to buy to replace them all. My Volvo is coming up on her 15 th birthday and I wanted to give her a special gift by means of brand new stainless steel bolts through out

 

16.

I should probably ask what bolts you are looking to update (ie intake or exhaust manifolds), what model/year your car is and whether you are only looking for body trim bolts or the nuts and studs that typically go into the block...