Quantity   Component name
1 × 3D Printed Clamp Body See "Files"
1 × M8x18mm Cross Dowel Barrel Nut Commonly used in IKEA furniture. M8 crosshole, 12mm diameter, 18 mm long
1 × M8x40 Bolt with Crossgrip Knob You can make your own! https://www.thingiverse.com/thing:1562501
4 × M4x16 Bolt Panhead or sockethead
4 × M4 Spring Washer
4 × M4 Nut