Think its a M8 thread, so first you need a bolt then your know what size socket/allen key your need

13mm head

I've spent too long mounting Junction Boxes in work, really need to get out more!

Id go for a socket cap head(allen key). Looks much neater. I got 100's of em if you want one

Drunkn Munky wrote:Id go for a socket cap head(allen key). Looks much neater. I got 100's of em if you want one

Thanks for that Drunkn Munky. I'll take a look at the weekend, I'll PM you if I need one and sort you with some cash for it and the posting/packing.

i use a button cap security torx for exhast can and tax disc in the passes before i moved to the screen

Protected from the weather, fit behind the screen on the mirror/ nosecone brace stud.

Dave.

Drunkn Munky wrote:

Martin wrote:

google search "NC30" 2nd page

That made me giggle, could you not find one in worse condition martin?

Well I thought it was apt, first NC and all. Everyone falls off their first bike

Well at least the tank isn't dented.

13mm is the ISO / DIN size head of the M8 bolt.

An M8 bolt will have a 12mm head if your using a JIS bolt to match the rest on the bike... (will stop you having to dig out a 13mm spanner/socket when every other bolt on the bike is 12mm)

Neosophist wrote:13mm is the ISO / DIN size head of the M8 bolt.

An M8 bolt will have a 12mm head if your using a JIS bolt to match the rest on the bike... (will stop you having to dig out a 13mm spanner/socket when every other bolt on the bike is 12mm)

So is the difference between the UK spec and the JIS just the different Hex Head size? Are there any grade differences too, as in material used to manufacture the bolt (different steel)? I've no idea what grade the frame is either, so I want to use something that will match and not react.

What length of bolt are we talking, allowing enough to secure the tax disc?