4.0 × 70mm WoodMaster Super Cutter Woodscrews are high-performance, Pozi-drive screws designed for universal fixing into timber, chipboard, MDF, plastics and suitable composite materials.
Each screw combines a sharp Type 17 cutting point, aggressive thread form, helically fluted milling section and double-countersunk head with nibs. These features help the screw start quickly, reduce driving resistance and seat neatly into the fixed material.
The screws are supplied in a box of 200 and use a standard PZ2 driver.
The WoodMaster Super Cutter range is designed for fixing into common timber and manufactured-board materials, including:
The 70mm length is suitable for applications where the screw must pass through a board, batten or timber component before achieving secure engagement within the supporting material.
The sharp Type 17 point is fluted to help cut into the receiving material and clear timber fibres during the initial stage of installation.
This helps provide:
Dense hardwood, brittle boards, thin components and fixings positioned close to an edge may still require a pilot hole.
The screw incorporates a helically fluted milling section along the shank. This section helps clear drilling debris and reduce friction as the screw passes through the first component.
The milling action can help:
The high-quality aggressive thread is designed to penetrate efficiently and provide secure engagement in timber and suitable manufactured boards.
The thread should be allowed to cut into the receiving material at a controlled speed. Excessive impact or driving speed can damage the PZ2 recess, overheat the fixing or cause the screw to be driven too deeply.
The reinforced double-countersunk head improves strength around the neck of the screw and reduces the likelihood of the head shearing during higher-torque installation.
Nibs beneath the head cut into suitable timber and board surfaces during the final stage of driving. This helps the screw finish flush without requiring a separate countersink in many applications.
The head should be driven until it is flush with the material or seated to the depth required by the installation detail. It should not be unnecessarily buried beneath the surface.
The deep precision-formed Pozi recess accepts a PZ2 driver bit and allows torque to be transferred securely to the screw.
Using a correctly fitting bit helps:
The screws are manufactured from C1002 carbon steel and finished with electroplated zinc and di-chromate passivation.
The coating provides corrosion protection for normal internal and sheltered construction conditions. It should not be treated as equivalent to stainless steel or a specialist exterior-grade coating.
For exposed external, marine, chemically aggressive or persistently wet environments, select a fixing with an appropriate environmental and corrosion classification.
The screws may be used for appropriate timber-framing and batten-fixing work within soundproofing installations, including:
The screw has no standalone acoustic rating. In an isolated wall, floor or ceiling system, fixings must be positioned carefully so they do not bridge resilient layers or create unintended rigid sound paths.
| Product Name | 4.0 × 70mm WoodMaster Super Cutter Woodscrews |
| Manufacturer | Evolution Fasteners |
| Product Code | WS4070 |
| Product Type | Universal high-performance woodscrew |
| Nominal Diameter | 4.0mm |
| Length | 70mm |
| Drive Type | Pozi |
| Driver Size | PZ2 |
| Head Type | Double countersunk with self-countersinking nibs |
| Point Type | Type 17 cutting point |
| Shank Feature | Helically fluted milling or reamer section |
| Thread | Aggressive woodscrew thread form |
| Material | C1002 carbon steel |
| Coating | Electroplated zinc with di-chromate passivation |
| Compatible Materials | Timber, chipboard, MDF, suitable plastics and composites |
| Pack Quantity | 200 screws |
| Unit of Sale | One box |
| Pre-Drilling | Normally unnecessary in suitable timber; required where dictated by material density, edge position or the fixing specification |
| Standalone Structural Rating? | No design capacity should be assumed without suitable engineering data and safety factors |
| Standalone Acoustic Rating? | No |
| Diameter | Length | Drive | Pack Quantity | Product Code |
|---|---|---|---|---|
| 4.0mm | 70mm | PZ2 | 200 | WS4070 |
| Diameter Options | Length Options | Pack Options | Total Variations |
|---|---|---|---|
| 4.0mm | 70mm | Box of 200 | 1 |
Select the screw position, penetration and spacing according to the materials being joined and the loads applied to the connection.
Confirm that the components are sound and suitable for a countersunk woodscrew.
Do not fix into:
Ensure the 70mm screw can pass through the first component and achieve sufficient engagement within the receiving timber or board.
Allow for the thickness of all intervening materials, including boards, battens, membranes and isolation products.
The Type 17 cutting point is designed to reduce the need for pre-drilling in most common timber applications.
Use a suitable pilot hole when fixing:
Place the components in their final position and clamp them where necessary.
Correct alignment prevents movement as the screw starts and helps the head seat evenly.
Fit a sound, correctly sized PZ2 bit into a suitable drill-driver.
Insert the bit fully into the recess and keep the tool aligned with the screw. Replace the bit if it slips or shows significant wear.
Position the Type 17 point at the required fixing location and begin driving at a controlled speed.
The point should take hold quickly. Maintain firm axial pressure so the driver remains seated in the Pozi recess.
Continue driving while keeping the screw straight.
The milling section will help clear timber fibres and reduce friction as it passes through the first component.
Stop and investigate if:
Allow the thread to engage the receiving material and pull the components firmly together.
Do not continue driving where a gap remains because debris, misalignment or an incorrect fixing arrangement prevents the joint from closing.
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, but the screw should not be overdriven deeply into the material.
Check that:
Where the screw is used within a soundproofing system, follow the complete system detail.
Do not drive screws through resilient bars, isolation clips, acoustic underlays or decoupling layers unless the design specifically requires that connection. An incorrectly positioned screw can bridge the isolation layer and reduce acoustic performance.
The zinc and di-chromate passivated finish is intended primarily for normal internal and sheltered conditions.
Use stainless-steel or appropriately coated fixings where the screws will be exposed to persistent moisture, weather, corrosive timber or aggressive environments.
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