Expansion Screws Closed Hook Anchor Fasteners for Wall Concrete Brick,Pack of 4 Pcs Gold (12mm X 50mm)

By Brand : Generic

Avg Customer Reviews :

screw diameter: approx 16mm / 0.6 inch suitable to use for cement concrete materials fixation principle: the expansion screw is by using the wedge angle to prompt expansion and creates friction, to reach the fixed effect need to use 16mm diameter drill bit for drilling holes, the drilling depth should great than or equal to 7 cm, installation: first, insert the expansion screw into the soil-cement admixture, hard twist the closed hook until cant twist it anymore second, screw the nut with wrench until it fixed finally, tightening the closed hook again, quantity: 2 pcs screw diameter: approx 16mm / 0.6 inch suitable to use for cement concrete materials fixation principle: the expansion screw is by using the wedge angle to prompt expansion and creates friction, to reach the fixed effect need to use 16mm diameter drill bit for drilling holes, the drilling depth should great than or equal to 7 cm, installation: first, insert the expansion screw into the soil-cement admixture, hard twist the closed hook until cant twist it anymore second, screw the nut with wrench until it fixed finally, tightening the closed hook again,