The Threaded Cylinder option on the Color Manager dialog box allows you to define a face style for threaded features. Its default value is set to a style named Thread. The Textures option on the Rendering tab of the Format Views dialog box supports photo-realistic display of threads when you use the Thread face style.
A threads.jpg file is delivered to the \Program Files\Solid Edge ST5\Images\Textures\Other folder, which you can also use to create your own thread styles to display texture. You can make adjustments to the display characteristics of the Thread style, and any other face style using the Style command on the View tab.