







The expansion screw is an ingeniously crafted metal marvel, skillfully designed to deliver unparalleled stability and strength. Composed of a robust screw paired with a durable steel pipe or iron cylinder, this product epitomizes reliability and precision. One end of the screw is expertly threaded while the other end features a strategically designed taper. The steel pipe or iron cylinder boasts several meticulously crafted cuts at one end, enhancing its versatility and application. The genius of expansion screws lies in their wedge-shaped slope mechanism, which ingeniously generates a tremendous frictional grip force. This force is achieved through the expansion of steel pipes, ensuring an unyielding and steadfast hold that guarantees a lasting and secure fixing. Its versatility shines across a myriad of decoration occasions, making it indispensable for fastening air conditioners, water heaters, and range hoods. Moreover, it is the go-to solution for securing frameless balcony windows, installing anti-theft doors and windows, and perfectly mounting kitchen and bathroom components. Additionally, it is the ultimate choice for fixing ceiling screws, ensuring your installations remain impeccably intact.