1/4-20" camera screw A1 and Mini - 18 mm long

This model is a remix of the original Andrew design.

I redesigned the part because I needed a slightly longer screw. The main modification is the threaded shaft extended to 18 mm. While adapting the model, I also introduced a few structural improvements intended to increase strength when printed. I also changed the “grip texture” onto the handle.
 

Main changes made in this version:

• Longer shaft (18 mm) to fit deeper mounting holes.
• Added fillets on critical edges to reduce stress concentration and improve durability.
• Central through-hole added intentionally so that the slicer generates a concentric internal cylinder of perimeters/layers, which may help increase structural strength compared to a fully solid core.

The goal of these changes is to maintain compatibility with the original use case while making the part more robust and slightly more versatile.

All credit for the original concept and geometry goes to Andrew. This version simply adapts and strengthens the design for a different length requirement.