🔩 Product Overview: M2 M2.6 M3 M4 Phillips Pan Head Machine Screws with Washer Set – Round Cross Bolts
Stop hunting for separate washers every time you need a screw. This pre‑assembled combination set gives you a Phillips pan head machine screw with a captive washer – ready to use right out of the bag. Made from high‑quality carbon steel with a choice of finishes (nickel, black zinc, color zinc, white zinc, or anti‑loosening rubber coated), these screws offer corrosion resistance, high strength, and reliable fastening. The pan head provides a low‑profile bearing surface, while the attached washer distributes clamping force and protects the workpiece. Available in M2, M2.6, M3, and M4 metric diameters with thread lengths from 6mm to 35mm (measured under the head). Perfect for machinery, electronics, automotive, furniture, and general assembly where speed and consistency matter.
✨ Why This Screw & Washer Set Is a Workshop Essential
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Pre‑assembled screw + washer – No separate washer to lose or misplace. Speeds up assembly and ensures consistent fastening every time.
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Carbon steel construction – High strength, good wear resistance, and durable for long‑term use. Provides strong fastening force.
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Multiple finish options – Choose from nickel‑plated (bright silver), black zinc (dark matte), color zinc (yellow/gold), white zinc (bright), or anti‑loosening rubber coated versions.
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Phillips pan head design – Low‑profile rounded head with a flat bearing surface. Cross recess works with standard PH bits.
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Captive washer (non‑removable) – The washer is attached to the screw and will not fall off. Provides consistent clamping and surface protection.
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Metric sizes M2, M2.6, M3, M4 – Covers the most common small diameters for electronics, appliances, and light machinery.
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Thread lengths from 6mm to 35mm (under head) – Choose exactly what your project needs. Fully threaded for maximum grip.
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Wide application range – Machinery manufacturing, electronic equipment, automotive, construction, furniture, medical devices, aerospace, windows/doors, toys, outdoor gear, and marine industry.
📏 Technical Specifications – Screw & Washer Set (M2–M4)
| Specification |
M2 |
M2.6 |
M3 |
M4 |
| Thread Diameter (d) |
2mm |
2.6mm |
3mm |
4mm |
| Thread Pitch (p) |
0.4mm |
0.45mm |
0.5mm |
0.7mm |
| Thread Length Range (under head) |
6–35mm |
6–35mm |
6–35mm |
6–35mm |
| Head Diameter (dk) range |
3.1–4.0mm |
4.0–5.0mm |
5.0–6.0mm |
6.0–7.5mm |
| Head Thickness (k) range |
0.4–1.2mm |
0.8–1.5mm |
1.0–2.0mm |
1.5–2.7mm |
| Washer Diameter range |
4–5mm |
5–6mm |
6–8mm |
8–10mm |
| Washer Type |
Captive flat washer (pre‑assembled, non‑removable) |
| Material |
Carbon steel |
| Available Finishes |
Nickel‑plated, Black Zinc, Color Zinc, White Zinc, plus anti‑loosening rubber versions |
| Thread Type |
Fully threaded, coarse pitch |
| Tolerance |
±0.2mm |
❓ FAQs – Phillips Pan Head Screws with Washer
🔸 Is the washer removable? Can I use the screw without it?
The washer is pre‑assembled and typically captive – it may be removable with effort, but the combination is designed to be used together. For best results, keep the washer attached; it provides consistent clamping and surface protection. If you need a screw without a washer, please see our separate listings.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from just under the head to the tip. Length is measured from the underside of the head (the flat bearing surface) to the tip, not including the head or washer. For example, an M4 x 20mm screw has a 20mm threaded shank.
🔸 Which finish should I choose for my application?
Nickel‑plated offers a bright silver finish – great for general use. Black zinc provides a dark matte finish for stealth assemblies. Color zinc (yellow/gold) is often used for decorative or industrial contrast. White zinc offers a bright silver with a slight bluish tint. Anti‑loosening rubber coated versions are ideal for high‑vibration environments.
🔸 What Phillips screwdriver size works for M2 through M4?
M2 and M2.6: use PH0 or PH00. M3 and M4: use PH1. A precision screwdriver set with interchangeable bits is recommended for the smaller sizes.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are standard machine screws – they require a matching metric nut (M2–M4) or a pre‑tapped hole. They are not self‑tapping. The included washer is designed to bear against the surface, not under the nut.
🔸 What lengths are available for each diameter?
We offer thread lengths from 6mm to 35mm. Common increments include 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35mm. Please select your desired length from the dropdown options. If you need a length not listed, contact us.
