hollow bolt and nut m12 —

Founded hollow bolt and nut m12 models & stl files for printing
Hollow Ball
patrickpeiter
Adaptable Hex Bolt Wrench
3rDesign Works.com
Restraining Bolt
MakerDan
14 Jack NUT
jakned
Screw and nut containers
Dominik_Liskiewicz
Lightning Bolt Easy Quick Print
3DManufacturingHub