There are all the screws because, although I have naturally not counted, but it looks like. No tray is empty, so there are all sizes have also been included. The quality seems to be ok. In addition, the screws are not too exposed to the highest loads. So far I have found but no screw that can not pass through a dirty production process o. Ä. For small repairs around the house to watches, glasses or toys that enough perfectly. What was really annoying, but it also has nothing to do with the quality: over the label with true to size an address or a similar label was stuck, so you can not easily see what size is in each tray.