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Bi-Metal A4 Decking Screw Raised Countersunk Head RW Drive System Wurth

BRAND: Wurth
SKU: 505615560
$446.80 List price: $561.60
250 PCS ($1.79 per PCS)
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The Bi-Metal A4 Decking Screw is designed for direct timber to metal connections, featuring a raised countersunk head and RW drive system for enhanced power and
Technical Specifications
  • Material: Bimetal
  • Surface: Flake zinc silver (Ruspert coating)
  • Nominal diameter: 5.5 mm
  • Length: 60 mm
  • Head diameter: 8.5 mm
  • Head height: 3 mm
  • Drill tip length: 8 mm
  • Internal drive: RW20
  • Head type: Raised countersunk head
  • Maximum attachment thickness: 41 mm
  • Dimensions (H x L x W): 3mm x 60mm x 8.5mm
  • Weight: 0.05 kg
Key Features
  • Bi-metal stainless steel with hardened steel tip for durability
  • Ruspert coating for enhanced corrosion resistance
  • Raised countersunk head provides an aesthetically pleasing finish
  • RW drive system offers more power due to larger contact area
  • Precise positioning and perfect fit of drive bit for stability and one-handed operation
  • Fewer bit changes required for a larger variation of screw diameters
  • Compatible with same size AW drive bits
Professional Installation Requirements
  • Installation requires equipment with depth stop and claw coupling. Professional installation is recommended to ensure correct use and maximum performance.
Applications
  • Direct timber to steel connections
  • Decking installations requiring corrosion resistance
  • Outdoor timber structures with metal substructures
Standards & Compliance
  • Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
  • Ruspert coating enhances longevity reducing the need for frequent replacements
  • Bi-metal construction optimizes material use for durability and corrosion resistance
Warranty Information

Wurth provides a standard warranty against manufacturing defects. Please refer to Wurth's official warranty policy for details.

Available Now

Available for immediate purchase, ideal for timber to metal decking and structural fastening applications.