The fixings I have are from Wickes , but I assume that they come from knauf.
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have looked at the wickes good idea leaflet and the knauf guidance. However neither answer this question and photos & graphics do not give a clue I understand about banging flush with mallet & retightening etc . However prior to that ... which way up are the washers fitted ? ie concave centre upwards ? so you see a cup or convex centre upwards ? so you see a hill. If the former , then this provides a counter sink for screw ? however if the latter , then there is the proud centre which needs hammering down ?The wickes catalogue photo shows them "hill" upwards , so that may be the clue. Thanks
Moggs
Thanks