The selection will be diameter such as a 7/8" thread. The second is stud or bolt - screw is a bolt without a nut.
The studs have the option of different threads on each end. The thread are a choice of metric thread, the standard UNC
(Unified National Course) thread or wave thread. The wave thread is 25% stronger. The future production software will
allow changes to all the texted items. The "Shank" length; type of "Tip"; bolt/nut "Head", bolt "Driver", have/remove
"Taper" or "Fillet"
The desired resolution is entered when the CAT Process creates these parts.