Does anyone have some of these they could measure for me. I need a few and I'm not paying £10 for four bolts. I want to make around 12 to fix bike racks on with. From what the pictures look like they are just 5mm thick steel squares with a piece of M6 studding welded in the middle.

http://blog.leenarts.net/wp-content/uploads/2008/02/05x-thule-adapter-888.jpg

thanks

That's about the size of it. I got them to send me some for free they were so hard to source when I lost mine!

I'm going to see what I can make tomorrow night. £10, yes £10 for four bolts !!! How did you persuade them to give you them for free ?