Trade Discount 20%
ASSY 30 SK Timber Screw | 12mm Diameter | Yellow Zinc Plated | AW50 Drive | @Pack of 25 | by Wurth
The ASSY 30 SK timber screw is designed for secure fastening in timber and staircase construction, featuring a 12mm diameter and yellow zinc plating for corrosion resistance. With a partial coarse thread and AW50 drive, it minimizes wood splitting and ensures optimum force transmission, making it ideal for professional carpenters and construction projects.
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Product Name/Title: ASSY 30 SK Timber Screw | 12mm Diameter | Yellow Zinc Plated | AW50 Drive | @Pack of 25 | by Wurth
Brand: Wurth
SKU: 184812320
Alternatively Known As: Timber screw, Wood screw, Staircase screw, AW50 drive screw, Yellow zinc plated screw
Technical Specifications
- Nominal diameter: 12 mm
- Length: 320 mm
- Thread length: 120 mm
- Head type: Round washer head
- Head diameter: 29.4 mm
- Head height: 5 mm
- Internal drive: AW50
- Thread type: Wood screw thread
- Thread design: Partial thread
- End milling cutter: Yes
- Thread form: Coarse thread
- Core diameter: 7.2 mm
- Tip shape: Tip with counter thread
- Tip angle: 34 degrees
- Material: Hardened steel
- Surface finish: Zinc plated yellow
- Max screw-in angle: 90 degrees
- Min screw-in angle: 0 degrees
- Suitable materials: Board ply wood (BSP), Wood, Derived timber product, Hardwood, LVL, Softwood
- Area of application: Rafter insulation, Element construction, Timber construction, Structural woodwork, Rafter purlin connection
- Additional accessory: Bit lock
- Approval: ETA-11/0190
- Dimensions (H x L x W): 5mm x 320mm x 29mm
- Weight: 0.5 kg
Key Features
- Large washer head for secure fastening
- Hardened steel with yellow zinc plating for corrosion resistance
- Partial coarse wood screw thread with counter thread to prevent wood splitting
- AW drive for optimum force transmission and fast location
- End milling cutter reduces screw-in torque and protects tools
- 34° tip angle for precise positioning
- Asymmetric coarse thread for faster screwing and reduced processing time
- Minimal splitting forces, especially near edges
- Bit lock accessory included
- ETA-11/0190 approval
Professional Installation Requirements
- Installation by a qualified carpenter or construction professional is recommended to ensure proper fastening and structural integrity.
Applications
- Staircase construction
- Woodworking and carpentry
- Modular construction
- Timber and passive house construction
- Rafter insulation and element construction
- Timber construction and structural woodwork
- Rafter purlin connection
Standards & Compliance
- AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- Durable hardened steel construction extends product life reducing waste
- Zinc plating provides corrosion resistance reducing need for replacements
Warranty Information
Warranty as per Wurth standard terms and conditions.
Available Now
The Wurth ASSY 30 SK timber screw 12x320mm is available for immediate purchase, ideal for professional timber and staircase construction applications.
