M8 40 mm - 25 x Concrete Fixings Plugs; 25 x Wall Fixing Screw. - The plastic expansion tube plugs and the self tapping screw are well matched, easy to install. Practical Design: The split in the ribbed wall anchors adopt an expansion curve design, will expand on two opposing sides as you tightening the screw, which greatly enhances the anchoring force, prevent the wall anchor from turning in the hole.
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