Perfect for plasterboard and gypsum fibreboard

These plugs hold better than I thought, to prevent fraying and to have a slightly better guidance it may be worth using a small drill (4 or 5 mm) pre-drilling. Especially when you have to pre-drill gypsum fiber boards around the dowels reinzukriegen in plasterboard it goes that way.

My conclusion: these plugs are perfectly suited to assemble something in plasterboard walls, the difference to universal plugs is phenomenal!

Update 10/10/2014: In very thin plasterboard (9mm) these anchors are I unfortunately broke even at low load, such thin plates, it is advisable to twist dowel which is caulking behind the wall. Actually not a problem because fishing but does not point directly to it there is a star deduction. For the other boards I have been very pleased with the dowels.

Update 10/24/2014: I have now found out that you have to press the dowels at purely screws. If the pressure is too low, the anchor makes one revolution more than would be necessary on the thread pitch forth, thereby canceling much gypsum and the dowel does not hold the end. However, if you really firmly pressed during the clean turning, so the maintenance is very good even in thin plasterboard.