If you have problems with anchors slipping or not holding - these anchors work great. In addition, the quality of every item in every shipment was very high β none of the packages contained a deformed dowel or a screw without a point. These anchors (and I bought AF5, AF6 and AF8) should be kept in the anchor locker. Another note: screw anchors create a giant hole that's a lot harder to patch - drill them down to the size listed for each anchor size and they'll make good little clean rigs.