expansion anchor
2021-10-09
Expansion Anchor 
Expansion Anchor bolt is an anchor bolt that uses expansion parts to squeeze the wall of anchor hole to form anchoring effect. Also known as expansion bolt, expansion screw, expansion gecko; It was originally invented by Fisher factory of Atul Fisher joint stock company in waldachitar, Germany, and relates to an expansion anchor bolt for anchoring in a cylindrical drilling hole. The expansion anchor bolt has the structure of an anchor bolt matrix, on which a hollow conical expansion section is formed by forming, and an expansion sleeve bent by a plate is sleeved on the section. Through the axial movement of the expansion sleeve on the expansion section, the expansion anchor bolt is anchored in the borehole.
Mr. andy