20 PCS Black Jack Nuts Petal Expansion Rivet Nut (M4)

【Excellent Stability】:Designed with a petal-shaped structure, these expansion nuts provide a strong and secure hold on thin plates after installation, ensuring enhanced safety and stability. 【Premium Material】:Made from high-quality carbon steel with an electroplated finish, these petal expansion nuts are highly resistant to corrosion, offering long-lasting durability. 【Anti-Theft Function】:Once installed, these jack nuts are difficult to remove with ordinary tools, effectively preventing theft of items like license plates. 【Quantity and Dimensions】:This set includes 20 PCS of jack nuts, with a model size of M4*20mm, meeting a variety of fastening needs. 【Wide Application】:Perfect for securing license plates, drying racks, container tags, and more. These expansion nuts are compatible with various materials, including plastic, iron sheets, and hollow boards.