A Hexagon Flange Head Drilling Screw with an EPDM Washer is a specialized self-drilling fastener designed for robust and weather-resistant connections. It integrates several features for efficient and secure installation:

• Hexagon Flange Head: The hexagonal head allows for easy driving with a socket wrench, providing high torque capabilities. The integrated flange acts as a built-in washer, distributing the load over a larger surface area and preventing over-tightening damage to the substrate, while also offering a neat, finished appearance.
• Drilling Point: The screw features a drill-bit shaped point, eliminating the need for a pre-drilled pilot hole in many materials. This self-drilling capability significantly speeds up installation and reduces labor.
• EPDM Washer: The attached EPDM (ethylene propylene diene monomer) washer is a crucial component, providing an excellent seal against water and other environmental elements. EPDM is known for its superior resistance to weathering, UV radiation, ozone, and temperature extremes, ensuring a long-lasting, watertight connection.

Application

• Metal Roofing and Siding: Widely used for fastening metal sheets to purlins or girts in roofing and cladding applications. The EPDM washer creates a weather-tight seal, preventing leaks in exposed environments.
• HVAC Ductwork: Ideal for securing sheet metal in heating, ventilation, and air conditioning systems where an airtight and secure connection is critical.
• Agricultural Buildings: Employed in barns, sheds, and other farm structures for fastening corrugated metal panels, offering durability and resistance to harsh outdoor conditions.
• Trailer and Vehicle Manufacturing: Used in the assembly of trailers, caravans, and other vehicles for fastening exterior panels and components that require a strong, sealed connection.
• General Metal Fabrication: Suitable for various metal-to-metal or metal-to-wood applications where self-drilling capability and weather sealing are desired.

Feature

• Self-Drilling Capability: Eliminates the need for pre-drilling, saving time and effort during installation.
• Integrated Washer (Flange): Provides increased bearing surface, distributing load evenly and preventing pull-through.
• Weatherproof Seal: The EPDM washer forms a tight, resilient seal against moisture, dust, and air, protecting against corrosion and leaks.
• Corrosion Resistance: Often available in various coatings (e.g., zinc plating, mechanical galvanizing) to further enhance resistance to rust and environmental degradation.
• High Torque Drive: Hexagon head allows for strong, positive engagement with a driver, reducing cam-out and ensuring secure fastening.
• Aesthetics: The flange head offers a finished, professional appearance upon installation.
• Versatility: Suitable for a range of materials, including various gauges of sheet metal and some wood substrates.