Cylinder head plug/bolt size

[b12]

 I was thinking of making up a couple of stainless cam to cam lines for my B12.  Yes I know they do nothing, but I like the look.  I'm situated in Belgium.   You can't find them here, and after brexit I would have to pay a lot of post and import fees on top of the £80.00 that just Bandits asks for a pair.   

I can buy all the hardware needed for the lines from aliexpress, but would have to find drill and tap some bolts to mount them.  Does anyone know the thread diameter, length and pitch?  

[clivegto]

Gsxr ones use a bolt with a flat head which are easy to convert if you can find some in Belgium. I'll measure the thread size later for you. 

[b12]

thanks, they look good, just drill and tap the centre holes to the right size (M10 x 1).  I've found a couple on the internet could the size be M14 x 1.25 X 12?

Edited November 18, 2023 by b12

[clivegto]

2 hours ago, b12 said:

thanks, they look good, just drill and tap the centre holes to the right size (M10 x 1).  I've found a couple on the internet could the size be M14 x 1.25 X 12?

Yes m14x1. 25mm, gsx air cooled ones will also fit. 

[Joseph]

You could go to halfords and buy a bag of oil sump plugs because many cars use that size, as do the GSXR bikes also