The file 'NIOP Wrist Pin 1/2 & 3/4 Inch Threaded 3D Printer Model' is (stl) file type, size is 131.5KB.
This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/074NNHBSnmf
just a remix of the wrist pin i added threads for 1/2 inch and 3/4 inch