Self-Drilling Hex Head Screws for Exterior Metal-to-Metal Fixing TIMCO Light Section Self-Drilling Hex Head Screws are designed for fastening light-gauge metal sheeting and cladding to steel sections without the need for pre-drilling. The integrated EPDM washer provides a secure, watertight seal, protecting against water ingress in exterior applications. The silver organic coating delivers excellent corrosion resistance, while the self-drilling point ensures quick, efficient installation. Perfect for roofing, cladding, and general light steel construction. Key Features & Benefits Self-Drilling Point: Eliminates the need for pre-drilling in light steel sections. Hex Head: Allows high torque application for secure fastening. EPDM Washer: Creates a watertight seal and prevents water ingress. Silver Organic Coating: Provides enhanced corrosion resistance for exterior use. Exterior-Grade Performance: Suitable for roofing, cladding, and outdoor metal construction. Application Areas Fixing metal sheets to light steel sections Roofing and cladding installations Outdoor steel frame construction General exterior metal-to-metal fixing Technical Specifications Head Type: Hex washer Drive Type: Hex socket Thread Type: Self-drilling Point: Drill point for light steel sections Material: Hardened carbon steel Finish: Silver organic coating Washer: EPDM bonded sealing washer Use: Exterior applications