This is a scaled down hook based on thing:1727029 by Isaac Williams. The original hook was too big for my liking but I didn't want to scale the screw holes too. So I've recreated it from scratch.

This hook has 110mm overall height, a hole diameter of 3mm, a hole bore diameter of 6mm, and 4mm of "meat" for the screw. You can customize these parameters. Read more below.

Required Hardware

• 2 screws with a 2.5-3mm diameter and a head diameter ≤6mm. Customize the hook for different screws (see below).

Customize

This hook parameterized and can be customized with Onshape. You can adjust the overall size of the hook as well as hole parameters to make it fit the screws you have.

Edit Customize this hook with Onshape CAD

How to Customize

1. Open the Onshape link
2. Edit the configuration parameters in the upper left. 
3. Export from the toolbar at the bottom. 
   When exporting, select STL format and millimeter as the unit.

Printing

Print the hook flat on its side.

• Material: PLA, PETG, anything solid
• Perimeters: 5 (more perimeters = more strength)
• Infill: 30% or more Gyroid
• Top and bottom solid layers: 4
• Supports: No