This is a M6x20 screw to replace the steel bolt on the front fork mud guard. When hitting stones in terrain the bolt can be hit, breaking of a piece of the front fork.
People use nylon screws to replace the steel bolts so the bolt will break instead of the fork.
I donwloaded the screw model and printed it solid in PETG and it should work the same.
Use at your own risk.
Printer Brand:
Creality
Printer:
CR-20
Rafts:
No
Supports:
No
Resolution:
0.12
Infill:
100%
grey
Notes:
Print solid for maximum strength.