trapezoidal lead screw —

Founded trapezoidal lead screw models & stl files for printing
Screw Box with Bit Holders
Anibal Betancourt
Screw Top Hockey Puck
ThisVersion
Screw guide
Hirotoshi Tawara
Screw holder  hex shank
Printing Programmer
Screw  Bolt Box
Kraken3DPrinting