Trade Discount 20%
ASSY® 4 WH II Washer Head Screw | Zinc Plated Steel | Universal Partial Thread | 50 PCS | by Wurth
The ASSY® 4 WH II washer head screw is designed for reliable wood-wood fastening, featuring a zinc plated steel construction and universal partial thread. Ideal for structural wood applications, it ensures optimal power transmission and precise positioning, making it perfect for professionals in timber construction and element assembly.
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Product Name/Title: ASSY® 4 WH II Washer Head Screw | Zinc Plated Steel | Universal Partial Thread | 50 PCS | by Wurth
Brand: Wurth
SKU: 177580220
Alternatively Known As: Washer head wood screw, Structural wood screw, Zinc plated wood screw, Partial thread screw, ASSY washer head screw
Technical Specifications
- Dimensions (H x L x W): 3mm x 220mm x 18mm
- Weight: 0.15 kg
Key Features
- Universal partial-thread screw with washer head for wood-wood fastening
- Suitable for 90° or inclined screw connection in structural wood construction
- Ideal power transmission thanks to RW drive
- Larger contact area at the bit for more power
- Tight-fit recess and perfect bit fit for precise positioning and one-handed working
- Compatibility with previous AW drive
- Visually appealing screw connection with option of countersinking
- High head penetration values and strong combination of wooden components
- Increased pulling together capacity when combined with U-washers
- Reduced force required when fastening due to milling shank displacement effect
- Minimized risk of screw breakage due to high breaking torque
- Reduced risk of injury from protruding metal chips
- High protection of application tools
- No over-tightening or stripping with high feed
- Higher power transmission in hardwoods due to reinforced asymmetrical thread flank geometry
- Better anchoring thanks to higher thread flanks
- Smooth thread start ensures optimized recessing
Professional Installation Requirements
- Recommended installation by professionals familiar with structural wood fastening to ensure safety and compliance.
Applications
- Structural woodwork
- On rafter insulation
- Element construction
- Timber construction
- Timber panel construction
- Roof
Standards & Compliance
- Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- RoHS-compliant, ensuring reduced hazardous substances
- Durable hardened steel material extends product life reducing waste
Warranty Information
Warranty details available upon request from Wurth, typically covering manufacturing defects.
Available Now
Available for immediate purchase, ideal for structural wood construction and timber fastening applications.
