These hooks fit on ATX Cable machines with hole beams of 60.5x60.5mm size and holes 20mm in diameter spaced 50mm apart.
Hooks are tested with 20kg on a 8mm carabiner, no significant deformation when the carabiner is at the base of the hook or at the tip over a hang time of 20 minutes.
The hooks snap into the holes and are in place securely once installed.
The author marked this model as their own original creation.