I am going to install Ikea Stolmen to my bedroom. It needs to be fixed into ceiling. But i can't decide on which screws/anchors going to use for such task. I had this installed on my old house but setup was done by someone else. I can't really remember what kind of screws were used back there. Floor part doesn't require any screws.
Left one is ceiling part and right one is the floor part:
My installation going to be identical to this one: stolmen http://imanada.com/daut/as/f/s/stolmen-system-combinations-all-parts-ikea-1-section-white-width-50-depth-19-58_floor-to-ceiling-shelving_home-decor_wholesale-home-decor-halloween-nautical-affordable-christian-christmas-decorating-s.jpg
My ceiling has made of concrete. Should i use "tapcon" screws or plastic wall anchors with appropriate screws?
Thank you all.