Makerbeam profiles are now threaded with M3 :-)
You'd certainly love your MakerBeam kit... but 30cm, 60cm and 90cm length profiles are a bit short for your brand new project. You need something larger? really long?
No problem, here is the 150cm (1500mm) long profile for MakerBeam. The longer available!
With this size, you can start to imagine some very audacious projects.