Stainless steel hex head self-drilling screws with EPDM (Ethylene Propylene Diene Monomer) washer are commonly used in construction, roofing, and outdoor applications. Here are some typical details about these screws:
Material: Stainless steel, typically SS304 or SS316, ensuring corrosion resistance, durability, and strength.
Head Type: Hexagonal head, designed for easy gripping with a wrench or socket.
Drive Type: Usually equipped with a hexagonal drive (hex head), allowing for efficient installation with a compatible tool.
Thread Type: Self-drilling screws feature a sharp, self-tapping thread, eliminating the need for pre-drilling pilot holes in many materials. The thread typically conforms to industry standards for optimal performance.
EPDM Washer: The EPDM washer serves as a weatherproofing and sealing element. EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber known for its excellent resistance to weathering, ozone, UV radiation, and temperature extremes, making it ideal for outdoor applications. The washer ensures a watertight seal between the screw and the surface it's fastened to, preventing water ingress and corrosion.
Size Range: Available in various sizes to accommodate different applications, ranging from small DIY projects to heavy-duty industrial applications. Common sizes include #8, #10, 1/4", 5/16", and 3/8" diameters, with lengths ranging from 1/2" to several inches.
Application: These screws are commonly used in roofing, construction, HVAC (Heating, Ventilation, and Air Conditioning), and outdoor installations where a secure, weather-resistant fastening solution is required. They're suitable for attaching metal to metal, metal to wood, and metal to other materials.
Installation: To install, simply drive the screw into the material using the appropriate tool (e.g., a nut driver or socket wrench). As the screw penetrates the material, the self-drilling feature creates a precise pilot hole, and the EPDM washer compresses against the surface, forming a tight seal.