🔩 M4 M5 M6 Phillips Round Pan Head Machine Screws – Carbon Steel, Multiple Finishes, 5–45mm Lengths
You’re assembling a piece of machinery, fixing a motorcycle part, or putting together flat‑pack furniture – and you need screws that are strong, affordable, and come in a range of lengths and finishes. These M4, M5, and M6 round pan head screws are made from carbon steel with your choice of bright nickel, black zinc, white zinc, or coloured zinc plating. The Phillips drive works with standard crosshead screwdrivers, and the low‑profile pan head provides a wide bearing surface without countersinking. Fully threaded, with length measured under the head. Available in lengths from 5mm up to 45mm. Perfect for machinery, furniture, automotive repair, electronics, shipbuilding, and DIY projects.
✨ Key Features – Carbon Steel Pan Head Phillips Screws
- 🔘 Round pan head design – Low profile, wide bearing surface. No countersinking needed – sits cleanly on the material.
- 📐
Phillips drive – Standard cross recess works with common screwdrivers. Good torque transfer.
- 💪 Carbon steel construction – High hardness, strong, and durable. Resists deformation under load.
- 🎨 Multiple finish options – Bright nickel, black zinc, white zinc, or coloured zinc. Match appearance and corrosion resistance to your project.
- 📏 Metric sizes M4, M5, M6 – Popular diameters for machinery, furniture, automotive, and general assembly.
- 📐 Lengths 5–45mm (under head) – Example: M5 x 10mm means thread diameter 5mm, length from under head to tip is 10mm. Fully threaded.
- 🧰 Versatile use – Machinery, furniture, motorcycle/auto repair, communication equipment, power facilities, electronics, shipbuilding, and DIY.
📏 Available Sizes – M4 M5 M6 Pan Head Screws (Length Under Head)
| Thread Diameter (M) |
Thread Pitch (mm) |
Available Lengths (mm, under head) * |
Head Style |
Drive |
Finish Options |
| 📐 Length measured from underside of head to tip. Fully threaded. Select exact size, length and finish from dropdown. |
| M4 |
0.7 |
5, 6, 8, 10, 12, 14, 16, 20, 24, 25, 32, 45 |
Round pan head |
Phillips |
Bright nickel / Black zinc / White zinc / Coloured zinc |
| M5 |
0.8 |
5, 6, 8, 10, 12, 14, 16, 20, 24, 25, 32, 45 |
| M6 |
1.0 |
5, 6, 8, 10, 12, 14, 16, 20, 24, 25, 32, 45 |
* Lengths are typical – exact availability may vary. All screws are fully threaded. Please allow minor manual measurement errors.
📋 Which Finish Should You Choose?
| Finish |
Appearance |
Corrosion Resistance |
Best For |
| Bright nickel |
Shiny silver, bright |
Good – indoor use, light moisture |
Electronics, visible fasteners, furniture |
| Black zinc |
Matte black, low glare |
Moderate – indoor, light moisture |
Industrial equipment, dark assemblies, automotive |
| White zinc |
Silver‑grey, matte |
Moderate – indoor |
General manufacturing, construction |
| Coloured zinc |
Various colours (e.g., yellow, blue) |
Moderate – decorative |
Colour‑coding, decorative projects, custom builds |
❓ Frequently Asked Questions – M4 M5 M6 Pan Head Screws
1. How do I measure the length of a round pan head screw?
For pan head screws, length is measured from the underside of the head (the flat bearing surface) to the tip. The head itself is NOT included. So an “M5 x 10mm” screw has a 10mm long threaded shaft under the head. All our lengths follow this standard.
2. Are these screws fully threaded? What about longer lengths like 45mm?
Yes – all M4, M5, and M6 screws in this range (up to 45mm) are fully threaded from under the head to the tip, giving you maximum grip in blind holes or when using nuts.
3. Will the carbon steel screws rust? Can I use them outdoors?
Carbon steel screws with nickel, zinc, or colour zinc plating offer moderate corrosion resistance – fine for indoor use and occasional light outdoor exposure. For continuous outdoor or marine environments, we recommend stainless steel. For most machinery and furniture projects, plated carbon steel is perfectly adequate.
4. What Phillips screwdriver size do I need for M4, M5, M6?
For M4, use a #1 Phillips. For M5 and M6, a #2 Phillips works best. Always use a driver that fits snugly to avoid cam‑out and head damage.
5. Can I use these screws with a nut? What size nut fits?
Yes – these are machine screws. Use standard metric nuts of the same thread size (e.g., M5 nut for M5 screw). For the same finish, we recommend matching nuts from our store.
6. Do you offer other lengths not listed?
We carry a wide range of lengths – if you don’t see your required length in the dropdown, please contact us. Custom lengths may be available on request.
