What Size Confirmat Screws Do You Use?
When it comes to assembling particleboard or MDF furniture, Confirmat screws are the unsung heroes—but not all sizes are created equal. Let’s break down the most popular sizes and why they’re the go-to choices for DIYers and manufacturers alike.
While Confirmat screws come in various diameters and lengths, three sizes dominate the market due to their versatility and strength:
| Size | Typical Use | Why It’s Popular |
| 6.4x50 mm | Medium-duty cabinets, dressers, sofa frames | Balances grip and material thickness (16–25mm panels). |
| 7.0x50 mm | Standard bed frames, wardrobes, thick cabinets | Robust for 25–30mm boards; ideal for load-bearing joints. |
| 7.0x70 mm | Heavy-duty bed bases, workbenches, thick assemblies | Extra length anchors deeply into >30mm materials. |
Note:
• Slight variations like 6.3mm vs. 6.4mm are often regional naming differences (they’refunctionally interchangeable).
• The flanged head (usually 13–15mm diameter) ensures a flush finish in pre-drilled holes.
Why These Sizes Rule the Furniture World
1. Material Compatibility
Particleboard and MDF panels are commonly manufactured in 16mm, 18mm, and 25mm thicknesses—these screw lengths align perfectly to penetrate deep without splitting the material.
2. Strength-to-Cost Balance
The 7.0x50 mm screw, for example, offers optimal pull-out resistance for most furniture, eliminating the need for costly metal brackets.
3. Global Standardization
These sizes are widely adopted by European and Asian furniture manufacturers, making replacements easy to source.
Pro Tips for Choosing the Right Size
• Match length to material thickness: Ensure the screw’s threaded portion engages at least 2/3 of the panel’s depth (e.g., 50mm screw for 25mm board + 25mm mating panel).
• Avoid “close enough” sizes: A 6.4mm screw in a 7mm pilot hole will wobble and weaken the joint.
• Outdoor or humid environments? Opt for stainless steel or coated variants (e.g., blue-zinc) to resist rust.
Beyond the Basics: Customization Options
While 6.4x50 mm, 7x50 mm, and 7x70 mm cover 90% of furniture needs, some projects require tweaks:
• Shorter lengths (e.g., 7x30 mm): For thin panels in compact shelving.
• Longer threads: For extra grip in brittle MDF.
• Colored heads: Discreet black or white finishes for visible joints.
Need these popular sizes—or something custom? At Fasto, we’ve produced Confirmat screws for over a decade, tailoring dimensions, coatings, and heads to match any design. Let’s discuss your project! Reach me at info@fasto.cn for technical advice, bulk orders, or a free quote.