Just putting a steel rule across it, from the edge of thread to thread it looks almost 2mm so id say yeah, 1.75mm
Good point - looks to be 1.5mm although the bolt is quite worn so the threads aren't "sharp" - very blunt....Ill tell him tomorrow although I did tell him to look at this thread so he can see for himself.
Nope - I did see your post but I didn't want to have to order something that I would probably use just the once....
Pete - I just ordered one.....tools for the job and all that....I always prefer to have the right tools....so thanks for the link...
A & E 2670 Metric thread file 0.75 - 3.00mm pitch for studs and bolts | eBay on top of pete's gauge this is right handy and gives you all the thread sizes