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Window Construction Screw Full Thread & Raised Countersunk Head Zinc Plated Steel Wurth

BRAND: Wurth
SKU: 190504045
$227.20 List price: $285.60
500 PCS ($0.45 per PCS)
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The ASSY® 4 FBS RCS window construction screw is designed for secure fastening in wood, featuring a full thread and raised countersunk head for a clean finish.
Technical Specifications
  • Material: Hardened steel
  • Surface: Zinc plated
  • RoHS-compliant: Yes
  • Nominal diameter (d): 4 mm
  • Length (l): 45 mm
  • Head diameter (d h): 7.2 mm
  • Head height (k): 2.5 mm
  • Internal drive: RW20
  • Thread length (lg): 37 mm
  • Head type: Raised countersunk head
  • Head details: Restraining ribs
  • Thread type: Wood screw thread
  • Thread design: Full thread
  • Thread form: Single start thread
  • Core diameter: 2.5 mm
  • Shape of tip: Tip with ring thread
  • Angle of the tip: 20 Degree
  • Colour: Silver
  • Product weight (per item): 2.700 g
  • Min. screw-in angle: 0 Degree
  • Max. screw-in angle: 90 Degree
  • Suitable machines: Würth BS 12-A Power, Würth BS 14-A Combi
  • Approval: ETA-11/0190
  • Declaration of performance (EU-CPR): Yes
  • Dimensions (H x L x W): 2.5mm x 45mm x 7.2mm
  • Weight: 0.0027 kg
Key Features
  • Full-thread screw with raised countersunk head and restraining ribs for gentle attachment of window fittings in wood in indoor dry or sheltered areas
  • Ideal power transmission thanks to RW drive
  • More power due to larger contact area at the bit
  • More stability, one-handed working, precise positioning due to the tight-fit recess and perfect fit of the bit
  • Fewer bit changes, 1 bit for many screw diameters
  • Compatibility with previous AW drive
  • Visually appealing fasteners in window construction with lens-shaped, rounded head
  • Spring-loaded effect of the restraining ribs prevents the screw from overturning and destroying the head
  • Less tendency of the wood to split and very few blow-outs
  • Blow-outs are avoided to a high degree thanks to the punching effect
  • Minimal splitting forces, especially when screwing in at edges
  • Reduction of the screw-in torque
Professional Installation Requirements
  • Installation by a professional or experienced tradesperson is recommended to ensure proper fastening and to avoid damage to materials.
Applications
  • Windows
  • Fitting
  • Furniture
  • Suitable for use in wood, derived timber products, softwood, board plywood (BSP), hardwood, LVL
Standards & Compliance
  • AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
  • RoHS-compliant material ensures reduced hazardous substances
  • Durable zinc plating extends product life reducing replacement frequency
Warranty Information

Warranty information not specified by manufacturer; typically covered under standard product liability and quality assurance policies.

Available Now

Available for immediate purchase, ideal for window construction, fitting, and furniture applications.

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