Head bolt size in mm?

[BITESIZE]

What size are head bolts? 14 mm?

[A18A]

manual says 10 x 1.25mm but i dont understand that but the good thing is that the bolts strip the socket instead of stripping the bolt ./ thats a good thing, i undone mine with a 12point socket 2 so its all good :)

[AZmike]

The head is 14 mm 6-point. The bolt is a special 10 x 1.25. Metric bolts are sized by the diameter of the shank and thread spacing, not the size of the head. Why are you asking? The factory bolts are very tough.

[88Accord-DX]

Yep, 10 X 1.25 metric thread.
These head bolts can only be purchased from the Honda dealer at about $6 & some change for one.

The head bolts are tough & can be re-used unlike TTY (torque to yeild) bolts which require a torque angle meter.