This specialized fastener combines a robust hex flange head, durable stainless steel construction, and a precise cutting tail self-tapping tip, all complemented by an integrated EPDM washer. It is engineered for demanding applications requiring strong, corrosion-resistant, and weather-sealed connections, particularly in roofing, siding, and general construction.

Features

• Hex Flange Head:
  • Hex Drive: Provides a positive grip for wrenches or hex drivers, allowing for high torque application and reduced cam-out (slipping of the driver).
  • Integrated Flange: Distributes the clamping force over a wider area of the material, reducing the risk of crushing or deforming softer substrates. It also acts as a built-in washer, providing increased bearing surface.
• Stainless Steel Construction:
  • Corrosion Resistance: Made from high-grade stainless steel (commonly 304 or 316), offering excellent resistance to rust, oxidation, and various environmental corrosive agents. This is crucial for outdoor and marine applications.
  • Durability: Provides strength and longevity, ensuring reliable performance in harsh conditions.
  • Aesthetic Appeal: Maintains a clean, bright appearance over time, resisting discoloration.
• Cutting Tail Self-Tapping Screw:
  • Cutting Tip Design: Features a sharp, drill-like point (often a Type A, AB, B, or a specialized drill point) that allows the screw to drill its own pilot hole through various materials, including light gauge metals, without pre-drilling.
  • Thread-Forming Action: The threads behind the cutting tip form a strong, secure thread in the substrate as the screw is driven, eliminating the need for tapping.
  • Efficient Penetration: Designed for quick and effective penetration through metal panels, roofing sheets, and other materials.
• Integrated EPDM Washer:
  • Weather Sealing: The permanently attached EPDM (Ethylene Propylene Diene Monomer) washer compresses under the screw head, creating a waterproof, airtight seal. This prevents moisture, dust, and other contaminants from entering the fastened joint.
  • Vibration Dampening: Helps to absorb vibrations, which can prevent loosening over time.
  • UV and Ozone Resistance: EPDM is highly resistant to UV radiation and ozone, making it ideal for outdoor exposure without degradation.
  • Thermal Expansion Accommodation: Allows for slight movement between materials dueating to thermal expansion and contraction, useful in roofing and cladding.

Applications

• Metal Roofing and Siding: Widely used for fastening metal panels to purlins or framing in commercial, industrial, and residential buildings. The EPDM washer provides essential weatherproofing.
• HVAC and Ductwork: Securing ventilation ducts, exterior units, and plenums where airtight and weather-resistant connections are critical.
• Marine Applications: Fastening components on boats, docks, and other marine structures due to the corrosion resistance of stainless steel and the sealing capabilities of EPDM.
• General Outdoor Construction: Ideal for attaching exterior fixtures, signs, flashing, and various components where exposure to elements requires corrosion resistance and a waterproof seal.
• Solar Panel Installation: Securing mounting brackets and panels to roofing structures.
• Agricultural Buildings: Fastening corrugated sheets or other materials in barns, sheds, and other farm structures.

Advantages

• Exceptional Corrosion Resistance: Stainless steel ensures longevity and performance in harsh, corrosive environments.
• Superior Weather Sealing: The EPDM washer provides a reliable, long-lasting barrier against water, air, and dust, preventing leaks and material degradation.
• High Driving Torque and Reduced Cam-out: The hex flange head allows for powerful, controlled installation without stripping.
• Efficient Installation: The cutting tail eliminates the need for pre-drilling, significantly speeding up fastening in metal and other materials.
• Enhanced Load Distribution: The flange head spreads the load, preventing material damage and improving clamping force.
• Durable and Reliable: The combination of materials and design results in a fastener that withstands the elements and maintains structural integrity over time.