Chinese Professional 7.5 Mm Concrete Screws - Hdg Concrete Self Tapping Undercut Bolt For Concrete Fixing – Gusen

Gusen galvanized concrete self tapping undercut bolt, super high performance bolt anchor, used for  permanent fastening and temporary fastening in concrete, fast efficiency, requires less drilling and operation than traditional anchor bolt.

Application :cracked and non-cracked concrete.

Concrete screws are hardened screws with a flange lead. As it is screwed into the concrete it creates its own undercut by tapping the concrete hole. The cutting and locking mechanism enables the anchor to be used in close spacing and edge distance applications.

Also used  as masonry screws, concrete screws cut their own threads when work on the  concrete, block, or marble. Concrete screws can be used to fix  wood, metal, concrete or other materials.

concrete screw anchor for professionals with superior corrosion resistance.

Crack concrete/concrete C20/25-C50/60.
Ceiling and roofing.
Crack concreteC12/15
Natural marble/stone.
Solid bricks.

Handrail ventilating pipe
Wall curtain wood structure
Window/door metal profiles
Ladder mechanical device
Ceiling

Concrete /light concrete/solid bricks/honeycomb bricks/natural stone/concrete bricks/sand bricks

1, drill
2, clean
3,install
4, finish