Pretty standard strap clamp, like you'd use to hold down a cable or conduit or hose.

Use the Thingiverse or OpenSCAD Customizer

Fully parametric, compatible with the OpenSCAD customizer. Can set

• shape of the thing being help (circle, half circle, rectangle)
• breadth of the strap
• size of the thing being held down
• thickness ot the strap over the thing being held down
• size of the end tabs
• size of the screw hole
• screw head type: round or flat, and if flat, dimensions
• number of screw holes