[John Manrho]

Hello Marko....I followed this thread a bit. As an aeronuatical engineer from proffession I was a little bit shocked when the talk was bout 7 mm rivets....now we known the rivet head was meant. Totally different of course. Rivet diameters from 2.6 till 6 mm are very ordinary. Solid rivets with diameters bigger than 7 mm are not very handy for riveting.....and as somebody else already said...for bearing strength the diameter is the most important thing and therefor when engineers talk about 4 mm rivets the diameter is meant!!!