










Countersunk C2 Strong Fix Wood Screws – Yellow Zinc, PZ Drive
4.0mm Diameter – High strength screws for fast, precise timber fixing.
These 4.0mm C2 Strong-Fix screws are engineered for confident driving into timber, MDF and chipboard. Each screw features a twin-cut tip for rapid start-up and reduced splitting, with a deep thread for strong grip and a double countersunk head for a clean, flush finish.
Ideal for structural jobs, cabinetry, and general construction where consistent performance is key. Trusted by trade and DIY users alike.
Key Features
- Double countersunk head for reduced head shear and improved finish
 - Lubricated for fast driving with lower insertion torque
 - Deep thread offers excellent pull-out resistance in soft and hard woods
 - Twin-cut tip reduces splitting and provides rapid bite
 - Yellow zinc plating for light corrosion resistance
 
Available Length Variants (All in 4.0mm Diameter)
| Length (mm) | Recommended Uses | Typical Applications | 
|---|---|---|
| 25mm | Short fixings, trim hardware | Brackets, skirting, thin timber sheets | 
| 30mm | General fixing in softwood | Furniture backs, MDF corners | 
| 35mm | Light structural work | Rails, carcasses, wall plugs | 
| 40mm | Strong mid-depth fixing | Framing, heavy trim, battens | 
| 45mm | Increased hold in thicker timber | Shelves, window boards | 
| 50mm | Deep anchoring strength | Joists, structural bracing | 
| 60mm | Larger frame and stud work | Flooring, door linings | 
| 70mm | Long fixings through soft layers | External cladding, wall battens | 
| 80mm | Extended depth and strength | Sleeper walls, large timber fixings | 
Key Specifications (All Sizes)
- Diameter: 4.0mm
 - Head Type: Double Countersunk
 - Drive Type: Pozi (PZ2)
 - Finish: Yellow Zinc Plated
 - Thread Type: Deep single thread, twin-cut point
 - Material: Carbon Steel
 - Coating: Lubricated for ease of use
 - Application: Timber, MDF, chipboard
 
Based in Rotherham near Sheffield, Jones DIY delivers an expanding range of fixings and fasteners with honest service and quick turnaround.