LUUK expansion screws, 20 petal shaped screws and metal nuts

Features: *"High quality materials": These screws are made of high-quality carbon steel and have a beautiful silver finish. Carbon steel materials have great stiffness and toughness, making them an excellent installation material. *Efficient and practical: Good extension effect, fixed installation, twisted threads, uniform, and not easy to rotate. Exquisite craftsmanship, simple structure, easy installation and use ensure perfect results. *Easy to use: It can be used as a regular bolt and nut - screw the screw onto the part that needs to be fixed, then secure the nut and screw in the screw. When rotating, the nut gradually opens, increasing the connection area. *The widely used petal particles are very suitable for DIY or construction projects because they can be used with various materials, including plastics, plywood, hollow walls, iron sheets, etc. *Package includes: a set of 20 push screws. The nuts of these bolts are unique lug nuts that can expand and increase the installation area when tightened. Very suitable as a fixing screw for thin plates. Specifications: *Material: Galvanized steel. *Dimensions: M4 * 20, M4 * 25, M5 * 25, M6 * 25 Packaging content: 20 expansion screws Attention: Due to various factors such as screen brightness and lighting brightness, the actual color of the project may be slightly different from the image displayed on site. 2. Please allow small manual measurement deviations to the data.