This part ist for the replacement of the Barrier Bar on a Stihl KMA. The nuts are inprintet, be shure your printer can pause for inserting the nuts and you have to configure it in your slicer correctly.
Perhaps it also fits on other Stihl tools like the FSA, but I can't test it without the tools. If you have tried it, please write to the comments.
Two M8 nuts are required.
The replacement is on your own risk, it´s not my fault if you cut into your leg ;)
The author hasn't provided the model origin yet.