Dimmensions of the BBB

Dear Sir/Madam,

I'd be very grateful if you could give me some mechanichal information concerning the Beaglebone Black.
I would like to attach the BBB thanks to its fixing hole, but I did not find in the datasheet the dimmensions of the holes.
Could you give me the information please.

Best regards,

Bouchaïb CHELAOUI.

It is in the manual.