Quality of mounts: 1A + | Quality of screws: Scrap!

after the goods have been delivered in a short time I made my usual evening directly to the assembly of the wheel holders. To wall: plasterers concrete garage. Only been professionally measured and marked out, then 8-holes were drilled. The first wheel holders was screwed - looks good, I like that. Then a trial basis a winter bike was hanged (185/60 / R14 on aluminum rim) and the first few seconds and everything looked fine. but then heard a crackle and crunch, the rim has the holder slowly pulled out of the wall. Before now the wheel, I removed it from sliding off the holder and controls the pin. The sleeve was totally zerdreht and already torn on one side. Besch *** Quality. So both screw-bolt back out and a new Päärchen the supplied bolts used. Screwed. Knack! Top bolts demolished (despite normal force expenses) ...... Now the mood was zero and I have everything first placed in a box and gone home. The next day, a new attempt was daring - but this time with normal Fisher anchors in size and 8 Spax screws in M6x70

Since then hang 8 Winter wheels on the wall, rock solid - as it should be.
Conclusion: Holders Top !! Screws / bolts: Scrap! --- An asterisk will be deducted