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ASSY® 4 A2 CS Universal Screw A2 Stainless Steel Countersunk Head Wurth
ASSY® 4 A2 CS universal screws are crafted from high-quality A2 stainless steel, featuring a partial thread and countersunk head
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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.
