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When you need a reliable, all‑purpose fastener that bites into sheet metal, wood, and plastic without fuss, these zinc‑plated pan head self‑tapping screws deliver. Fabricated from high‑strength carbon steel with a bright galvanized coating, they resist rust and oxidation in indoor and mild outdoor environments, keeping your assemblies tight and clean for years. The sharp self‑tapping thread cuts its own path as you drive — no pre‑tap or pilot hole required in most thin materials — while the classic Phillips pan head sits flush and provides a secure, cam‑out‑resistant grip with a standard screwdriver. GooBetter supplies the four most‑called‑for metric diameters: M3, M4, M5, and M6, with lengths from 8 mm to 60 mm. Whether you’re assembling furniture, repairing appliances, mounting hardware, or working on automotive and DIY projects, these screws put professional‑grade fastening within easy reach.
| Size | Thread Diameter (d) | Head Diameter (dk) | Head Thickness (k) | Available Lengths (mm)* | Head Style | Drive | Material & Finish |
|---|---|---|---|---|---|---|---|
| M3 | 3.0 mm | 5.3 mm | 1.9 mm | 8 – 30 | Pan Head | Phillips | Carbon Steel, Zinc Plated |
| M4 | 4.0 mm | 6.9 mm | 2.3 mm | 10 – 40 | Pan Head | Phillips | Carbon Steel, Zinc Plated |
| M5 | 5.0 mm | 9.0 mm | 2.8 mm | 12 – 50 | Pan Head | Phillips | Carbon Steel, Zinc Plated |
| M6 | 6.0 mm | 11.9 mm | 4.0 mm | 16 – 60 | Pan Head | Phillips | Carbon Steel, Zinc Plated |
* Lengths are thread length only (measured from under the head). Exact lengths vary per size – select from the listing drop‑down. All dimensions conform to GB/T equivalent standards.
Absolutely. The sharp self‑tapping thread bites well into softwoods, hardwoods, and sheet metal. For very dense hardwoods, a small pilot hole (about 80% of the screw diameter) makes driving easier and prevents splitting.
In thin sheet metal up to about 1.5 mm and most plastics, you can drive them directly. For thicker steel or very hard materials, a pilot hole will reduce driving torque and ensure the cleanest thread engagement.
Zinc plating provides strong protection against rust in indoor and mild outdoor settings. It forms a sacrificial layer that corrodes before the steel does. For constant wet or coastal exposure, stainless steel would be better, but for normal household, workshop, and automotive use, zinc plating holds up very well.
All lengths are measured from directly under the pan head to the tip (thread length only). Head thickness is not included, allowing you to accurately match the screw to the material thickness.
