Description
Product Overview: Pan Combi Self‑Tapping Screws (#4 to #12, 6.5 – 50 mm)
1. General Features
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Featuring a pan head with integrated washer flange (Pan Combi): ideal for increased loading and surface contact.
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Designed as self‑tapping screws: capable of cutting their own thread into softer metals, plastics or wood, typically requiring a small pilot hole for sizes using a Type‑B blunt tip.
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Often made of zinc‑plated high‑tensile steel (grade ~4.8), sometimes stainless steel depending on supplier. Zink plating or black/yellow passivation for corrosion resistance.
2. Size Range & Thread/Length
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Available in gauge sizes from #4 (≈ 2.9 mm) up to #12 (≈ 5.5 mm) in diameter.
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Length options typically span 6.5 mm up to 50 mm. The sizes you mention, from 4 × 6.5 through to 12 × 50, lie well within standard ranges.
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Common size breakdown seen in kits (e.g. No. 4 = 2.9 mm × 16/19/25 mm; No. 6 = 3.5 mm × 16–30 mm; No. 8 = 4.2 mm × up to 38 mm; No. 10 = 4.8 mm × 16–50 mm; No. 12 = 5.5 mm × 19–50 mm).
📋 Summary Table
| Parameter | Description |
|---|---|
| Head Type | Pan Combi (Pan head + washer flange) |
| Drive Type | Typically Pozi‑drive (combination head) |
| Diameter (Gauge) | #4 (≈ 2.9 mm), #6 (≈ 3.5 mm), #8 (≈ 4.2 mm), #10 (≈ 4.8 mm), #12 (≈ 5.5 mm) |
| Length Range | From 6.5 mm up to 50 mm |
| Material/Finish | Steel (Zinc‑plated / black slip / yellow passivated), sometimes stainless |
| Thread Type | Self‑tapping, type‑B (pilot hole needed) |
| Standard | DIN 7981 compliant |
| Common Use Cases | Wood, plastic, sheet metal fastening |
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