I have this kind of anchors (plugs): rawlplug uno
Despite googling hard, I couldn't understand what type of screws they should go with: wood screws? sheet metal screws? machine screws? coarse thread? fine thread?
Every source seems to only specify the diameter and length of the screw to use with a particular size of the plug, nothing else!
Also, if there is any other feature of a screw relevant to their coupling with a given anchor, I'd be interested to hear about that.
Thanks
Best Answer
Plastic wall plugs are designed for use with wood screws. The wood screw cuts its own thread and is tapered allowing it to expand the plug and make it grip the masonary.
Note that while those plugs are "universal" in the sense that the manufacturer says they can be used in both solid and hollow walls, their load bearing capability in a hollow wall is far lower than in a solid wall because there is much less for them to grip.