Chipboard screws 5.0 x 80 partial thread galvanized - 200 pcs

Description

Strong 5.0 x 80 mm Wood Screws for Reliable Wood-to-Wood Connections

These 5.0 × 80 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 TX20 drive provides good grip during installation and prevents cam-out. This 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 80 mm length, this size is ideal for medium-duty wood connections where extra penetration depth is required.

Why choose these chipboard screws?

• Ideal for 25–30 mm thick boards and panels
  
• Partial thread — firmly pulls two wooden parts together
• 5.0 mm diameter — high load capacity and pull-out resistance
• Torx TX20 — good grip and controlled installation
• Zinc plated — corrosion protection for indoor use
• Pack of 200 pieces — suitable for larger projects

When do you use 5.0 x 80 mm screws?

A 5.0 x 80 mm partial thread chipboard screw is used when a strong wood connection with sufficient penetration depth is required.

Typical applications include:

• Fixing 25–30 mm thick boards
  
• Connecting wooden battens and beams
• Furniture construction with heavier panels
• Timber framing and wooden structures
• Wood-to-wood connections requiring high pull-out resistance

Why is 80 mm a logical length?

For a board thickness of approximately 28 mm, 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.

28 mm × 3 ≈ 84 mm

With an 80 mm screw, nearly the same penetration depth is achieved, ensuring that:

✔ Sufficient penetration depth is reached
✔ High pull-out resistance is achieved
✔ The structure remains stable

This makes 5.0 × 80 mm a widely used size for strong timber constructions.

What makes these 5.0 x 80 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 engages the timber. This actively pulls the upper material downward, creating a tight and stable connection.

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

Advantages of partial thread at 5.0 x 80 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 choice.

Installation and mounting advice

For best results:

• Use a Torx TX20 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 to select the correct bit size and quality.

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 tools needed for efficient installation.

Not sure about the right length? Also view our 5.0x90 mm and 5.0x100 mm variants for thicker materials.

Specifications

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