A replacement for the plastic screw-like part of a Hasselblad 500 EL/Ms battery door.This was created by measuring and a lot of trial and error. After my battery door was blasted off by a shorted battery adapter and the plastic screw thingy broke apart, I had to create a replacement. Just print this part, remove the old knob by pulling on the small metal bar that goes through it and take all the metal parts off. Then simply replace the plastic part from Hasselblad with your printed part. Printing for me worked best using a layer height of 0.2mm on the no-hole version. The version with hole included might work on printers that have fans to allow for faster hardening of the material. Without additional cooling the holes always collapsed - print the no-hole version and drill the hole afterwards with a drill press if you run into this problem.