Specifies the thread boss parameters of the Boss feature.
Access
Ribbon: 3D Model tab 
Plastic Part panel Boss 
, and click the Thread tab.
Thread boss diameter
Thread boss hole diameter
Thread boss inner draft angle
Thread boss outer draft angle
The thread boss offers three hole types (hole check mark on):
Depth Enter the hole depth.
Full Depth The hole is automatically extended to the internal wall face. The best practice is to avoid sink marks in molded plastic parts.
Through The hole cuts the entire part.
If the hole check mark is off, the thread boss can model an ejector pin.
