CMP Screws and Screwdrivers draws eight types of screw heads. It is a teaching example for how to use Java Canvas, fillRect, fillOval, fillPoly and AffineTransform to draw. Java source is included for you to cannibalise. It draws 8 types of screw heads. To run as an application, type: java.exe -jar C:\com\mindprod\screws\screws.jar adjusting as necessary to account for where the jar file is.