• Adequate quantity: Receive 100 galvanized steel washers and 100 stainless steel screws, ideal for various usage and replacement needs. • Excellent quality: Washers made of high-quality steel with a galvanized rust-proof surface, durable and resistant to deformation. • Convenient installation: The kit includes washers and screws that can be operated directly without the need for additional tools. • Wide range of use: Perfect for fixing and installing interior and exterior walls, ceilings, drywall, insulation panels, composite panels, rock wool, and more. • Size information: Washer diameter of 28 mm (1.1 inches) and central hole diameter of 5.8 mm (0.23 inches). Each washer weighs approximately 1.5 g. • Product specifications: Material: Galvanized steel. Screw: M4.2*50mm. Washer: Outer diameter: 28 mm (1.1 inches); Central hole diameter: 5.8 mm (0.23 inches). • Package includes: 100 galvanized steel washers and 100 screws. • Note: Includes small parts. Keep away from children.