Trade Discount 20%
ASSY®plus 4 CS Universal Screw | Hardened Zinc-Plated Steel | Full Thread Countersunk Head | @Pack of 1000 | by Wurth
ASSY®plus 4 CS universal screws are designed for reliable fastening in various applications, featuring a hardened zinc-plated steel construction and a full thread for optimal grip. Ideal for interior fitting, cabinet construction, and furniture assembly, these screws ensure maximum stability and precise positioning without the need for pre-drilling. Experience enhanced power transmission with the RW drive and advanced centering drill tip for clean drilling.
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Product Name/Title: ASSY®plus 4 CS Universal Screw | Hardened Zinc-Plated Steel | Full Thread Countersunk Head | @Pack of 1000 | by Wurth
Brand: Wurth
SKU: 178043520
Alternatively Known As: Universal wood screw, Countersunk head screw, Zinc plated wood screw, Full thread timber screw, RW drive screw
Technical Specifications
- Nominal diameter: 3.5 mm
- Length: 20 mm
- Thread length: 14 mm
- Screw-thread length with drill tip: 17.5 mm
- Head type: Countersunk head
- Head diameter: 6.9 mm
- Head height: 2.1 mm
- Internal drive: RW20
- Thread type: Wood screw thread
- Thread design: Full thread
- Thread form: Single start thread
- Core diameter: 2.1 mm
- Shape of tip: Drilling tip
- Material: Hardened steel
- Surface: Zinc plated
- 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, Construction timber (KVH)
- Approval: ETA-11/0190
- RoHS-compliant: Yes
- Product weight per item: 0.935 g
- Dimensions (H x L x W): 2.1mm x 20mm x 6.9mm
- Weight: 0.94 kg
Key Features
- Full threaded screw with raised countersunk head and restraining ribs for gap-free fastening close to edges.
- Suitable for mounting metal fittings to timber windows without pre-drilling the wood.
- Ideal power transmission thanks to RW drive with larger contact area at the bit.
- More stability, one-handed working, and precise positioning due to tight-fit recess and perfect bit fit.
- Compatibility with previous AW drive and fewer bit changes needed.
- Advanced centring drill tip for precise positioning and very clean drilling without chipping.
- Maximum drilling performance with drilling cutting edges similar to Forstner bits.
- Quick screwing due to gentle start of thread.
- Form-fitting connection to metal fittings or wooden products with high bulk density.
- 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.
- Maximum reliability of screw connection due to asymmetrical single thread.
- Optimal matching of drill tip and thread geometry.
- Excellent anchoring in wood due to asymmetrical arrangement of thread flanks.
Professional Installation Requirements
- Recommended to be installed by professionals or experienced users using appropriate RW20 drive tools for optimal fastening performance and safety.
Applications
- Interior fitting
- Cabinet construction
- Store construction
- Exhibition stand construction
- Furniture assembly
Standards & Compliance
- AS/NZS 4785 – Timber fasteners (relevant for wood screws and fasteners)
Environmental Benefits
- RoHS-compliant ensuring reduced hazardous substances.
- Durable hardened steel construction extends product life reducing waste.
Warranty Information
Comes with Wurth's standard product warranty against manufacturing defects.
Available Now
Available for immediate purchase, ideal for interior fitting, cabinetry, furniture, and exhibition stand construction applications.
