• Made from high-quality stainless steel with a nickel-plated surface, these screws are rust-resistant and durable. • High-performance design with clear threads and strong internal structure, ideal for anchoring in aluminum profiles. • Includes hex flange nuts that act as individual washers, improving holding strength and reducing vibrations. • Perfect for installing heavy components on rails, such as ventilation systems, cable trays, and solar panels. • The package contains 20 aluminum profile T-Nut sliding screws and 20 hex flange nuts, size M8 x 20 mm. • Packaged in a storage box for easy use, location, and transport. • Product dimensions: 6.6 cm wide, 2.2 cm high, and 12.8 cm long.