Sell Metal Frame Fixing, Sleeve Anchors and Expansion Bolts for Windows

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Product Origin:China
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Description:Specifications: 1) Models: M8 - M20 2) Length: 60 - 300mm 3) For fixing of windows, door frames and squared timbers 4) Metal frame fixing 5) By tightening the screw, the cone is drawn into the sleeve and the fixing is expanded and you cann wedge it inside the drill hole 6) Suitable for: a) Concrete b) Natural stone with dense structure c) Solid brick d) Solid sand-lime brick e) Solid block made from lightweight concrete