So I'm not the greatest with keeping everything together (I know, bad habit) and in the process of taking apart/putting back together my Wireless Xbox 360 Controller, I lost the screws!

I have scoured the internet in search of the type/length. From this picture (http://www.divineo.com/magento/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/3/6/360-cscrew.jpg), it looks like there are 3 different kinds of screws. Any help to find the type and/or length (especially the length!) is greatly appreciated.

Thank you very much.