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ASSY®plus 4 CSMP SPECIAL Universal Screw | Hardened Zinc-Plated Steel | Countersunk Head | @Pack of 500 | by Wurth
ASSY®plus 4 CSMP SPECIAL universal screws are designed for reliable wood connections, featuring a hardened zinc-plated steel construction and a unique countersunk head for clean installation. Ideal for furniture assembly, cabinet making, and interior fitting, these screws ensure gap-free attachment without pre-drilling, providing maximum stability and power transmission with their RW drive design.
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Product Name/Title: ASSY®plus 4 CSMP SPECIAL Universal Screw | Hardened Zinc-Plated Steel | Countersunk Head | @Pack of 500 | by Wurth
Brand: Wurth
SKU: 178914045
Alternatively Known As: Wood screw, Countersunk wood screw, Zinc plated wood screw, Partial thread screw, RW drive screw
Technical Specifications
- Nominal diameter: 4 mm
- Length: 45 mm
- Thread length: 25 mm
- Screw-thread length with drill tip: 28 mm
- Head type: Countersunk head with milling pockets
- Head diameter: 8 mm
- Head height: 2.5 mm
- Internal drive: RW20
- Thread type: Wood screw thread
- Thread design: Partial thread
- Thread form: Single start thread
- Core diameter: 2.5 mm
- Tip shape: Drilling tip
- Material: Hardened steel
- Surface finish: Zinc plated
- Max screw-in angle: 90 degrees
- Min screw-in angle: 0 degrees
- Suitable materials: Board ply wood, wood, derived timber products, hardwood, LVL, softwood, construction timber, OSB, chipboard, solid wood panel
- Approval: ETA-11/0190
- Product weight per item: 2.574 g
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.5mm x 45mm x 8mm
- Weight: 1.29 kg
Key Features
- Universal partial thread with countersunk head and milling pockets
- Suitable for gap-free attachment close to edges without pre-drilling in wood-wood connections
- Ideal power transmission thanks to RW drive
- More power due to larger contact area at the bit
- More stability and precise positioning due to tight-fit recess
- Compatibility with previous AW drive
- Small edge distances possible due to wedge-shaped drill tip with parallel cutting edges
- Assembly without gaps, wood does not split or rupture
- Clean countersinking in softwood or wood material
- No chipping in coated chipboards due to improved milling effect
- Perfect fit of 90° head in fitting parts with metal countersinks
- Maximum reliability due to asymmetrical single thread
- Excellent anchoring in wood due to asymmetrical thread flanks
Professional Installation Requirements
- Professional installation recommended for optimal performance and safety, especially in structural applications.
Applications
- Furniture assembly
- Cabinet making
- Store construction
- Exhibition stand construction
- Interior fitting
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 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 furniture, cabinet, store, exhibition stand construction, and interior fitting applications.
