You can define your customized screw with the following Parameters:
Screw Name: Name of the Body
Head Diameter: Diameter of the cylinder head
Body Diameter: Diameter of the body shaft
Head Height: Height of the cylinder head
Body Length: length of the body shaft
Hexagon Diameter: Diameter of the inner Circle of the hexagonal polygon
Hexagon Height: Height to cut the hexagon from the cylinder head
Fillet Radius: Radius of all fillets
Thread Length: length of the thread
Chamfer Distance: distance of the 45degree chamfer on the body shaft
https://apps.autodesk.com/FUSION/en/Detail/Index?id=79972190430973837&appLang=en&os=Win64
