The file 'Hollow Two Way Screw / Bolt 3D Printer Model' is (stl) file type, size is 277.1KB.
Just a quick remix of gvera's two_way_screw_long model to make the bolt hollow.
Quicker printing, uses less material, and lets you store things inside if you print the end cap!
(No changes to print settings needed)
two_way_screw_long_hollow.stl | 657.7KB |