Features: Secure & Durable: Replace your doorbell screws with this set of 16 quality, industrial hardened alloy screws that offer exceptional strength and durability, ensuring a secure and long lasting connection. Extensive Compatibility: These screws are suitable for various doorbell devices, making them a versatile choice for all your installation or replacement needs. Convenient Size Selection: Each type of screw comes in a specific size, allowing you to easily select the appropriate screws for your specific requirements. With 4 pieces for each of the 4 types, you will have more than enough screws for any installation or future replacements. Suitable for DIY Projects: Whether you're a professional installer or a DIY enthusiast, these doorbell screws provide the perfect solution for securely mounting your doorbell. Enjoy a satisfying and secure user experience with their thick flat tip designs. Versatile Applications: Upgrades your home security system with these doorbell screws. Perfect for initial installation or future replacements, they ensure a stable and reliable connection between your doorbell and its mounting bracket. Enhances the safety and functionality of your doorbell with ease. Specifications: Material: alloy Height: 6.7/8.8/9.3/11.4mm Diameter: 5.3mm Package Includes: 16xDoorbell Screws note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.