About this 3D model
This hook is based on a model created for this pegboard: https://makerworld.com/zh/models/208330#profileId-228369 . The hook size is 22mm, you can increase the wall thickness and the percentage of infill before printing to achieve a higher load capacity. If you want hooks of other sizes, please leave a message in the comments section. I will try my best to draw them to meet your needs.