Simple to Install - They are easy to use. The split in the ribbed anchors expand on two opposing sides as you tightening the screw, prevent the anchor from turning in the hole. Set Includes:Plugs:6 30mm(20pc),6 40mm(20pc),8 40mm(10pc),screws:M4 30mm(20pc),M4 40mm(20pc),M5 40mm(10pc).
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