Trade Discount 20%
Window Construction Screw ASSY®plus 4 FBS RCS | Hardened Steel | Zinc-Plated | Full Thread | @Pack of 500 | by Wurth
The ASSY®plus 4 FBS RCS window construction screw is designed for seamless fastening in window applications, featuring a hardened steel body and zinc-plated finish for durability. With a full thread and raised countersunk head, it ensures gap-free installation without pre-drilling, making it ideal for professionals in window construction and furniture fitting.
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Product Name/Title: Window Construction Screw ASSY®plus 4 FBS RCS | Hardened Steel | Zinc-Plated | Full Thread | @Pack of 500 | by Wurth
Brand: Wurth
SKU: 178744045
Alternatively Known As: Window construction screw, timber window screw, zinc-plated wood screw, raised countersunk head screw, full thread wood screw
Technical Specifications
- Material: Hardened steel
- Surface: Zinc plated
- RoHS-compliant: Yes
- Nominal diameter (d): 4 mm
- Length (l): 45 mm
- Head diameter (d h): 7 mm
- Head height (k): 1.6 mm
- Internal drive: RW20
- Thread length (lg): 35 mm
- Screw-thread length with drill tip (b): 38.5 mm
- Head type: Raised countersunk head
- Head details: Restraining ribs
- Thread type: Wood screw thread
- Thread design: Full thread
- Thread form: Single start thread
- Core diameter: 2.5 mm
- Shape of tip: Drilling tip
- Min. screw-in angle: 0 Degree
- Max. screw-in angle: 90 Degree
- Suitable materials: Board ply wood (BSP), Wood, Derived timber product, Hardwood, LVL, Softwood, Construction timber (KVH), OSB, Chipboard, Solid wood panel (SWP)
- Approval: ETA-11/0190
- Declaration of performance (EU-CPR): Yes
- Dimensions (H x L x W): 1.6mm x 45mm x 7mm
- Weight: 0.00238 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, precise positioning due to tight-fit recess and perfect fit of the bit.
- Fewer bit changes, one bit for many screw diameters; compatibility with previous AW drive.
- Lens-shaped, rounded head for visually appealing window fitting connections.
- Spring-loaded effect of restraining ribs prevents screw overturning and head damage.
- Maximum reliability due to asymmetrical single thread and optimal matching of drill tip and thread geometry.
- Excellent anchoring in wood due to asymmetrical arrangement of thread flanks.
- Small edge distances possible with wedge-shaped drill tip with parallel cutting edges.
- Assembly without gaps; wood does not split or rupture.
Professional Installation Requirements
- Professional installation recommended to ensure correct fastening and structural integrity, especially in window construction applications.
Applications
- Windows
- Fitting
- Furniture
Standards & Compliance
- Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- RoHS-compliant material ensures reduced hazardous substances.
- Durable hardened steel construction extends product life, reducing waste.
Warranty Information
Warranty details available upon request from Wurth; typically covered against manufacturing defects.
Available Now
Wurth ASSY®plus 4 FBS RCS window construction screws are available for immediate purchase, ideal for window, fitting, and furniture applications.
