Chipboard screws 5.0 x 70 partial thread

Description

Strong 5.0 x 70 mm Wood Screws for Reliable Wood-to-Wood Connections

These 5.0 × 70 mm partial thread chipboard screws are designed for strong wood connections in MDF, OSB, chipboard, plywood, and solid timber. The zinc-plated coating protects the screws against corrosion and makes them suitable for indoor applications.

The Torx TX25 drive ensures optimal grip and improved torque distribution during installation. This prevents cam-out and allows the screw to be driven in efficiently and with full control.

The countersunk head sits neatly flush with the wood surface, providing a clean finish for both structural work and visible applications.

Thanks to the combination of a 5.0 mm diameter and 70 mm length, this size is ideal for medium-duty timber constructions and thicker panels where additional penetration depth is required.

Why choose these chipboard screws?

• Ideal for boards and panels 22–28 mm thick
  
• Partial thread — firmly pulls two wooden parts together
  
• 5.0 mm diameter — increased load capacity and pull-out resistance
  
• Torx TX25 — optimal grip with reduced risk of damage
  
• Zinc plated — corrosion protection for indoor use
  
• Pack of 200 pieces — suitable for larger projects

When do you use 5.0 x 70 mm screws?

A 5.0 x 70 mm partial thread chipboard screw is used when a strong wood connection with sufficient penetration depth is required.

Typical applications include:

• Fixing 22–28 mm thick boards or panels
• Connecting wooden battens and beams
• Furniture construction with heavy panels
• Timber framing and interior structures
• Wood-to-wood connections requiring high pull-out resistance

Why is 70 mm a logical length?

For sheet material of approximately 25 mm thickness, the general guideline is:

The screw should penetrate at least 2.5 to 3 times the thickness of the top material into the supporting timber.

25 mm × 2.5 ≈ 62 mm

With a 70 mm screw, this provides:

✔ Sufficient penetration depth
✔ High pull-out resistance
✔ A stable and durable connection
✔ Reduced risk of the material loosening over time

This makes 5.0 × 70 mm a widely used size for solid interior and timber constructions.

What makes these 5.0 x 70 mm screws suitable for MDF, plywood and solid timber?

When working with thicker wooden components, it is important that:

• The top material is firmly pulled against the supporting timber
  
• The connection remains stable under load
• The screw has sufficient grip in the supporting wood

Thanks to the partial thread, only the lower section of the screw grips the timber. This actively pulls the upper material downward, creating a tight connection without visible gaps.

The 5.0 mm diameter also provides additional torsional and bending strength during installation.

Advantages of partial thread at 5.0 x 70 mm

Unlike full thread screws, this version has thread only on the lower section.

This results in:

✔ Higher clamping force between two wooden parts
✔ Tighter connection of structural components
✔ Reduced risk of open joints
✔ More efficient wood-to-wood fastening

For assembling timber constructions and thicker panels, partial thread screws are often the preferred solution.

Installation and mounting advice

For best results:

• Use a Torx TX25 bit
  
• Pre-drilling is usually not required in softwood
• A small pilot hole is recommended in hardwood
• Drive the screw slowly and in a controlled manner

Tip: See our category for screwdriver bits and holders for the correct bit size and professional-quality tools.

Why order these screws from EnergyBy?

✔ Directly available from stock
✔ Competitive price per pack
✔ Clear and complete product specifications per size
✔ Fast and reliable delivery
✔ Matching Torx bits and fastening materials available

This ensures you order not only the correct chipboard screws, but also the right tools for efficient installation.

Not sure about the correct length? Also view our 5.0x50 mm and 5.0x60 mm variants for thinner materials.

Specifications

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