Timco Self-Drilling Hex Screws for Heavy Steel, Zinc, 5.5x80mm, 100pk

100 Zinc-plated self-drilling hex screws for heavy section steel up to 12mm thick. No pre-drilling required.

SKU: TIM-ZH80W16Brand: TimcoRead More

The Timco Self-Drilling Screwsare engineered for attaching metal to heavy section steel up to 12mm thick, eliminating the need for pre-drilling and saving valuable time during installation. These high-performance screws feature a robust zinc finish for excellent corrosion resistance and durability.

Constructed from case and core hardened carbon steel, these screws offer superior strength and reliability. The hex head design ensures a secure grip with power tools, while the fixed EPDM washer provides a secure, weatherproof seal against moisture ingress.

Key Features

• ul]:my-0″>Self-drilling No. 5 point eliminates need for pre-drilling
• ul]:my-0″>Partially threaded design for controlled material clamping
• ul]:my-0″>Corrosion-resistant zinc finish
• ul]:my-0″>Includes EPDM washer for weatherproof sealing
• ul]:my-0″>Case and core hardened carbon steel construction

Technical Specifications

• ul]:my-0″>Thread diameter: 5.5mm
• ul]:my-0″>Length: 80mm
• ul]:my-0″>Head type: Hex
• ul]:my-0″>Fixed washer diameter: 11.00mm
• ul]:my-0″>Socket size: 8mm
• ul]:my-0″>Effective thread length: 53mm (P/T)
• ul]:my-0″>Maximum drilling thickness: 12.0mm

Perfect for construction, metal roofing, and structural applications requiring strong, reliable fastening solutions without the hassle of pre-drilling.

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