sturiz 140PCS 4.8x35 mm Self Drilling Screws for Metal Roofing Screws with Rubber Washers Hex Head Self Tapping Screw und 2 M8 Hex Socket Tech Zinc Corrugated Roof Fixings for Tin Roof

• Product Content: This kit contains 140 self drilling screws (4.8 x 35 mm), each roofing screws with rubber integrated sealing washer. The kit includes 2 chromium-vanadium steel (M8) power tool adapter heads, significantly improving installation efficiency.
• High-Quality Materials & Durability: These self drilling screws for metal are made from high-quality carbon steel and zinc-plated for excellent corrosion resistance. The special coating of self tapping bolts prevents damage during driving, offers UV resistance, maintains roof-color appearance, and provides additional rust protection.
• Hex Design & Easy Installation: The external hex head of these tech screws prevents slipping and enables high torque application. The self-drilling point eliminates the need for pre-drilling. These self tapping screws can be easily and efficiently installed using wrenches or power tools.
• Self-Drilling & Self-Sealing: These corrugated roofing fixings easily penetrate metal sheets. The hex screws feature EPDM sealing washers that effectively prevent moisture penetration, compensate for thermal expansion, and ensure a durable, weather-resistant connection. These hex head timber screws are suitable for roof sheet applications.
• Wide Application: The triple protection system (carbon steel, galvanization, sealing washer) makes these corrugated roofing screws ideal for trapezoidal metal sheets, metal structures, gutters, and other outdoor applications requiring long-term weather resistance. These roof screws are the perfect choice for metal roof installations.

Product Content: This kit contains 140 self drilling screws (4.8 x 35 mm) with integrated sealing washers + 2-piece M8 hex bit socket set. High-Quality Galvanized Steel: These roofing screws bolts are made from high-strength carbon steel with zinc plating, offering excellent corrosion resistance and weather durability. Special coating technology prevents damage during installation. Self-Drilling Design: These roofing screws with rubber washers feature sharp drill points that penetrate metal sheets directly without pre-drilling (Note: Not suitable for aluminum plates). Sealing & Leak Prevention: These tech screws for metal are equipped with built-in EPDM rubber washers that effectively prevent rainwater penetration, accommodate thermal expansion/contraction, and maintain long-term waterproof performance. Hex Mechanical Structure: The external hex head design of these hex head timber screws provides higher torque, prevents slipping and breakage, and supports efficient installation with socket wrenches or power tools. Professional Application: These self tapping bolts are specifically designed for securing overlapping sections of corrugated roof fixings, trapezoidal sheets, corrugated panels, steel structure edges, and drainage gutters. Specifications: Size: 4.8 x 35mm Quantity: 140 pcs Accessories: 2pcs M8 Hex Socket (for power tools) Notes: 1.Not recommended for aluminum plates due to material characteristics. 2.Manual measurement may have 1-2mm size error. 3.Recommended to use matching socket bits to avoid coating damage.