Bolt sizes

[psycho_fling]

hi all

this is probably going to sound a bit stupid but could someone tell me what does M6 mean when talking about bolts?

thanks alex

[stu]

6mm diameter in size. Not the lenght, but the diameter. So if your using a M6 bolt, you need a 6mm hole for it to go in, or a 6mm Tapped hole etc.

Mr Stu

[swanaldo]

i have bolted down the m6