Hollow Brick Wall Expansion Bolt TV Stand Expansion Bolt $ 4.41 Product Information: how to use: First drill a hole in the wall; Insert the hollow wall anchor into the hole; Clamp the screw head with a tool and pull it out. The anchor has been extended; Remove the screw retainer, reinsert the screw and tighten it. Material: Zinc-carbon steel galvanized Bolt size: 446mm/ 460mm/ 537mm/ 565 mm / 665 mm Packing list bolt*1
