Astera-tube clamp

This clamp for Astera-Tubes is designed for use in noncritical areas only! NEVER use it to mount Astera-Tubes over people!   For assembly you need: 1x M3 Heatset-insert 1x M3 20mm cylinderhead screw  1x M3 15mm machine screw  1x M3 Thumbscrew from @nhchiu