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ASSY® 4 A2 CS Universal Screw | A2 Stainless Steel | Countersunk Head | 500 PCS | by Wurth
ASSY® 4 A2 CS universal screws are crafted from high-quality A2 stainless steel, featuring a partial thread and countersunk head, making them perfect for outdoor wood fastening applications. Designed for durability and corrosion resistance, these screws ensure reliable performance in various environments, including façades, terraces, and structural woodwork. Ideal for professionals seeking stability and precision in their installations.
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Product Name/Title: ASSY® 4 A2 CS Universal Screw | A2 Stainless Steel | Countersunk Head | 500 PCS | by Wurth
Brand: Wurth
SKU: 18743540
Alternatively Known As: A2 stainless steel wood screw, ASSY 4 A2 countersunk screw, partial thread stainless steel screw, outdoor wood fastening screw
Technical Specifications
- Nominal diameter: 3.5 mm
- Length: 40 mm
- Head type: Countersunk head
- Head diameter: 7 mm
- Head height: 2.3 mm
- Internal drive: RW20
- Thread type: Wood screw thread
- Thread design: Partial thread
- Thread form: Single start thread
- Thread length: 25 mm
- Core diameter: 2.1 mm
- Tip shape: Tip with hilltop milling cutter
- Tip angle: 28 degrees
- Material: Stainless steel A2
- Surface: Plain
- Min./max. screw-in angle: 0-90 degrees
- Product weight per item: 1.7 g
- Suitable materials: Wood, derived timber product, softwood, board plywood (BSP), hardwood, LVL
- Suitable machines: Würth BS 12-A Power
- Approval: ETA-11/0190
- Screw requiring approval: Yes
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.3mm x 40mm x 7mm
- Weight: 0.0017 kg
Key Features
- Partial-thread screw made of high-quality austenitic A2 stainless steel with countersunk head for universal wood-wood fastening in outdoor areas exposed to the elements
- 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, one bit for many screw diameters
- Compatibility with previous AW drive
- Form-fitting connection to metal fittings or in wooden products with high bulk density
- For fitting connection with full-thread steel screws
- Perfect fit of 90° head in fitting parts with metal countersinks
- Pulls together without head milling due to lack of milling elements below the head
- Higher breaking torque
- Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the single thread
- Better anchoring thanks to higher thread flanks
- Smooth thread start ensures optimised recessing and biting of the screw
- Reduced splitting effect due to displacement effect of the dome-shaped milling elements in the tip
- Friction-reduced thread rotation allows reduction of the screw-in force to be applied
- Stainless mounting for accessible wood connections in outdoor areas exposed to weathering
- Made of austenitic, non-magnetic and non-rusting A2 stainless steel
- Can be used in rural or urban environments or industrial atmospheres
Professional Installation Requirements
- Professional installation recommended to ensure correct fastening and compliance with safety standards.
Applications
- Façades
- Terrace
- Fence
- Structural woodwork
- Wet areas
- Balcony
- Board walk
- Play equipment
- Outdoors
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Made from corrosion-resistant stainless steel ensuring long product life and reduced replacement frequency
- Suitable for outdoor use reducing need for chemical treatments or coatings
- RoHS-compliant ensuring reduced hazardous substances
Warranty Information
Warranty information not specified by manufacturer; typically covered under Wurth standard product warranty.
Available Now
Wurth ASSY® 4 A2 CS universal screws are available for immediate purchase, ideal for outdoor wood fastening applications requiring durable and corrosion-resistant fasteners.
