Concrete wall anchors concrete brick anchors for tv mount Pack of 24 Ti universal nylon expansion wall plugs. Drill size 10mm. Ultra high grip Nylon specification. Anti-rotation fins prevent spinning in the hole. Engineered grip feature for extra holding power. Small edge distance achievable. Versatile nylon plugs with unique multy-way expansion holding power and anti-slip collar. For use with internal and external common building materials. 10mm wall anchors are just a little larger than regular concrete wall anchors 3/8 diameter +0.47mm on diameter giving more strength and holding power.