A 17mm diameter is
6¾ in the US & Canada
and
N in the UK, Ireland, and Australia.
The appropriate tool size needed for tightening a bolt with a 17mm spanner is a 17mm wrench or socket.
17mm 17mm
should be 17mm
An object that is equal to 17mm in size could be a standard shirt button, a nickel coin, or a small marble.
17MM
17mm
think it's a 17mm size
none, it is in between sizes
17mm spanner
17mm
17mm
The appropriate socket size for a 10.9 bolt is typically 17mm.