Put an M5 threaded insert into it and then you can use it as a nut to put somewhere to screw/unscrew easily by hand. It has a total length of 19 mm. You can also unscrew it using a PH2 bit at the end, in case you screwed it on too tightly or you want to screw it on more tightly than by hand.
Prints nicely in PLA in the default model orientation without supports at a layer height of 0.20 mm.
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The author marked this model as their own original creation.