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ASSY® 4 A2 RCS Fittings Screw | A2 Stainless Steel | Full Thread & Raised Countersunk Head | @Pack of 500 | by Wurth
ASSY® 4 A2 RCS fittings screws are crafted from high-quality A2 stainless steel, featuring a full thread and a visually appealing raised countersunk head. Perfect for outdoor applications, these screws ensure strong fastening in wood and structural woodwork, providing excellent power transmission and reduced splitting effects. Ideal for façades, terraces, and more, they are designed for durability and compliance with structural standards.
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Product Name/Title: ASSY® 4 A2 RCS Fittings Screw | A2 Stainless Steel | Full Thread & Raised Countersunk Head | @Pack of 500 | by Wurth
Brand: Wurth
SKU: 18754025
Alternatively Known As: A2 Stainless Steel Wood Screws, Raised Countersunk Head Screws, Full Thread Wood Screws, Outdoor Stainless Steel Screws
Technical Specifications
- Nominal diameter: 4 mm
- Length: 25 mm
- Thread type: Wood screw thread
- Thread design: Full thread
- Thread form: Single start thread
- Thread length: 21 mm
- Core diameter: 2.5 mm
- Tip shape: Tip with hilltop milling cutter
- Tip angle: 28 degrees
- Head type: Raised countersunk head
- Head diameter: 8 mm
- Head height: 2.5 mm
- Internal drive: RW20
- Material: Stainless steel A2
- Surface finish: Plain
- Max screw-in angle: 90 degrees
- Min screw-in angle: 0 degrees
- Product weight per item: 1.754 g
- Suitable materials: Wood, derived timber product, softwood, board plywood (BSP), hardwood, LVL
- Screw requiring approval: Yes
- Approval: ETA-11/0190
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.5mm x 25mm x 8mm
- Weight: 0.00175 kg
Key Features
- Full-thread screw made of high-quality austenitic A2 stainless steel
- Visually pleasing, rounded raised countersunk head for fastening metal to wood in outdoor areas exposed to the elements
- Ideal power transmission thanks to RW drive
- Larger contact area at the bit for more power
- Tight-fit recess and perfect fit of the bit for stability, one-handed working, and precise positioning
- Compatibility with previous AW drive
- Form-fit connection of the 90° countersunk head to metal fittings with 90° countersinks or in wooden products with high bulk density
- Lens-shaped, rounded head for visually appealing connections
- Higher breaking torque and power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry
- Better anchoring thanks to higher thread flanks
- Smooth thread start ensures optimized recessing and biting of the screw
- Reduced splitting effect due to displacement effect of dome-shaped milling elements in the tip
- Friction-reduced thread rotation allows reduction of screw-in force
- Made of austenitic, non-magnetic, and non-rusting A2 stainless steel
- Suitable for use in rural or urban environments
Professional Installation Requirements
- Professional installation recommended to ensure correct fastening and compliance with structural requirements.
Applications
- Façades
- Terrace
- Fence
- Structural woodwork
- Wet areas
- Balcony
- Board walk
- Play equipment
- Outdoors
Standards & Compliance
- Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- Made from corrosion-resistant stainless steel for long-lasting durability, reducing the need for frequent replacements
- Suitable for outdoor use, minimizing environmental impact through extended product life
Warranty Information
Warranty information available upon request from Wurth. Typically includes coverage against manufacturing defects.
Available Now
Wurth ASSY® 4 A2 RCS stainless steel screws are available for immediate purchase, ideal for outdoor wood fastening applications requiring corrosion resistance and high strength.
