For assembly for Version 2 you need:
4x M5x12 or M5x16 or M5x20 Cylinder Head Screws
4x M5x15mm Washer
may you have to cut the thread after printing
For assembly for Version 1 you need:
2x M5x55 Cylinder Head Screws
4x M5x15mm Washer
2x M5 Nut
For mounting on 20x20mm Aluminum Extrusion:
2x M5x10 or 2x M5x8 Cylinder Head Screws
and last but not least the screw, washer, nut for your door.
I think it can take a fair bit more torque than the original version, has a larger spread angle, and is easier to print.
The author remixed this model.