4.0 × 50mm WoodMaster Super Cutter Woodscrews are versatile carbon-steel screws designed for efficient fixing into timber, chipboard, MDF and other compatible materials.
Each screw combines a reduced cutting tip, strong Pozi drive and double-countersunk head with nibs. This provides rapid starting, reliable driving and controlled countersinking in a wide range of joinery, construction and general DIY applications.
The screws are supplied in one fixed specification:
The WoodMaster Super Cutter range is designed for fixing into materials including:
The 50mm length makes the screw suitable for joining boards, timber sections, battens and other components where adequate thread engagement can be achieved in the receiving material.
The reduced tip is designed to start accurately and enter compatible materials with less initial resistance than a conventional blunt-ended fixing.
This can help:
Pre-drilling may still be required in dense hardwood, brittle boards, thin components or fixing positions close to an edge.
The double-countersunk head provides additional reinforcement around the neck of the screw and is designed to finish flush with suitable timber and board surfaces.
Nibs beneath the head cut into the surface as the screw reaches its final depth. This helps:
The screw should be driven until the head is flush or seated to the depth required by the fixing detail. Overdriving can damage the material and reduce the quality of the connection.
The screw uses a Pozi No. 2 recess and should be installed with a sound PZ2 driver bit.
A correctly fitting bit helps:
Do not use a Phillips bit in the Pozi recess. Although the two profiles appear similar, an incorrect bit may slip and damage the screw head.
The screws are manufactured from C1002-grade carbon steel, providing the strength and hardness required for general wood and board fixing applications.
These screws should not automatically be treated as structural fasteners. Connections carrying calculated structural loads must use the fastener type, quantity, spacing and embedment specified by the project designer.
The electroplated zinc coating with di-chromate passivation provides corrosion protection for normal internal and sheltered applications.
This finish is not equivalent to stainless steel or a specialist exterior-grade coating.
Use a suitably rated alternative where fixings will be exposed to:
The screws may be used for appropriate timber and board-fixing tasks within soundproofing constructions, including:
The screws do not provide independent acoustic performance. When working with resilient bars, isolation clips or decoupled structures, follow the complete system detail to avoid creating an unintended rigid sound path.
| Product Name | 4.0 × 50mm WoodMaster Super Cutter Woodscrews |
| Manufacturer | Evolution Fasteners |
| Product Code | WS4050 |
| Product Type | Universal carbon-steel woodscrew |
| Nominal Diameter | 4.0mm |
| Nominal Length | 50mm |
| Drive Type | Pozi |
| Driver Size | PZ2 |
| Head Type | Double countersunk with nibs |
| Point Type | Reduced cutting tip |
| Material | C1002 carbon steel |
| Finish | Electroplated zinc with di-chromate passivation |
| Compatible Materials | Wood, chipboard, MDF, suitable plastics and compatible composites |
| Pack Quantity | 200 screws |
| Unit of Sale | One box |
| Pre-Drilling | Often unnecessary in suitable materials; required where dictated by material density, edge position or fixing specification |
| Driver Bit Included? | Confirm against the physical retail pack before publishing |
| Standalone Structural Rating? | No structural design capacity should be assumed without suitable technical evidence |
| Standalone Acoustic Rating? | No |
| Diameter | Length | Drive | Pack Quantity | Product Code |
|---|---|---|---|---|
| 4.0mm | 50mm | PZ2 | 200 | WS4050 |
| Diameter Options | Length Options | Pack Options | Total Variations |
|---|---|---|---|
| 4.0mm | 50mm | Box of 200 | 1 |
Confirm suitability before using the screws for:
Select the fixing position, screw spacing and required embedment according to the materials being joined and the load applied to the connection.
Confirm that both components are sound and suitable for a countersunk woodscrew.
Do not install the screw into:
Check that the 50mm screw can pass through the first component and achieve adequate engagement within the receiving timber or board.
Take account of:
The reduced cutting tip assists starting and can remove the need for a pilot hole in many standard timber applications.
Pre-drill where necessary when fixing:
A clearance hole through the first component may also be useful where the joint must be drawn tightly together.
Place the components in their final position and clamp them where necessary.
Check that:
Install a correctly sized PZ2 bit in a suitable drill-driver.
Push the bit fully into the screw recess and keep it aligned with the screw. Replace worn bits that slip or damage the head.
Position the reduced tip at the marked fixing point and begin driving at a controlled speed.
Maintain firm, straight pressure so that the screw starts accurately and the driver remains fully engaged.
Continue driving while keeping the screw perpendicular to the surface unless the installation detail requires an angled fixing.
Stop and investigate if:
Do not overcome excessive resistance by applying uncontrolled force.
Allow the screw thread to engage the receiving material and draw the joint closed.
Where the components do not pull together, remove the screw and check for debris, misalignment or insufficient clearance through the first component.
Drive the double-countersunk head until it is flush with the surface or seated to the depth required by the fixing detail.
The nibs beneath the head assist countersinking. Avoid driving the screw deeply below the surface, as this can damage the material and weaken the fixing area.
Check that:
Where these screws are used within a soundproofing construction, follow the system’s fixing layout.
Do not drive the screws through resilient bars, isolation clips, acoustic underlays or other decoupling layers unless the design specifically requires it. An incorrectly positioned screw can bridge the isolated construction and reduce acoustic performance.
The zinc and di-chromate passivated finish is intended primarily for normal internal and sheltered conditions.
Use stainless-steel or suitably coated fixings where the installation is exposed to weather, persistent moisture or corrosive conditions.
The screw does not independently provide structural, acoustic or fire performance.
The completed result depends on the materials, screw embedment, spacing, edge distances, joint design and installation quality.
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