Aluminum profiles for outdoor applications commonly use several types of fasteners to ensure secure and durable connections. These include: 1. T-nuts and T-bolts, which provide a strong and hidden connection within the profile. 2. Clamping blocks or plates, which are used for external fastening and can be easily adjusted. 3. Corner brackets, which are used to connect profiles at right angles. 4. Hinges, which allow for pivoting movements in doors or gates. 5. Screws and bolts, which are versatile and can be used in various configurations. 6. Adhesives, which can provide a strong bond in certain applications where mechanical fasteners are not suitable. 7. Rivets, which offer a permanent connection once installed. Each type of fastener is chosen based on the specific requirements of the outdoor structure, such as load-bearing needs, resistance to weather, and aesthetic considerations.