⚫ Product Overview: Micro Phillips Countersunk Machine Screws – Black Steel, M1 to M2.5
If you repair watches, eyeglasses, smartphones, or drones, you know how hard it is to find tiny screws that fit correctly and look professional. These M1, M1.2, M1.4, M1.6, M2, and M2.5 Phillips countersunk flat head machine screws are made from carbon steel with a black finish – perfect for dark anodized parts, electronic enclosures, and stealth assemblies. The 90° flat head sinks flush into countersunk holes, leaving a smooth, snag‑free surface. Fully threaded with standard coarse metric pitch, and length is measured including the head for easy matching with original fasteners. Grade 4.8 strength for reliable everyday use. Available in various lengths – select what you need.
✨ Why These Micro Black Countersunk Screws Are a Precision Essential
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Tiny metric sizes M1 to M2.5 – Covers the most common micro diameters for watches, eyeglasses, camera parts, drones, and smartphone repairs.
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Black finished carbon steel (Grade 4.8) – Provides a dark, non‑reflective surface that blends with black equipment. Strong enough for most small‑scale fastening.
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Phillips countersunk flat head – Sits flush in tapered holes for a professional, snag‑free finish. Ideal for panel mounting and flush assemblies.
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Fully threaded, coarse metric pitch – Standard threads: M1x0.25, M1.2x0.25, M1.4x0.3, M1.6x0.35, M2x0.4, M2.5x0.45. Threads run the entire length.
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Length measured including the head – Total screw length from top of flat head to tip. Easy to match with original fasteners (e.g., M2 x 8mm = 8mm overall).
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Made in China, consistent quality – Precision threads and clean heads. Grade 4.8 reliability for everyday repairs.
📏 Technical Specifications – Micro Countersunk Phillips Screws (M1–M2.5)
| Screw Size (d) |
Thread Pitch (p) |
Head Diameter (dk) min–max |
Head Thickness (k) |
| M1 |
0.25mm |
1.7 – 2.0mm |
0.6mm |
| M1.2 |
0.25mm |
1.8 – 2.1mm |
0.9mm |
| M1.4 |
0.3mm |
2.6 – 3.0mm |
1.0mm |
| M1.6 |
0.35mm |
2.7 – 3.2mm |
1.2mm |
| M2 |
0.4mm |
3.5 – 3.8mm |
1.3mm |
| M2.5 |
0.45mm |
4.4 – 4.7mm |
1.5mm |
Note: Length measured as total screw length including head (e.g., M2 x 6mm = 6mm overall). All dimensions manually measured – slight variations may occur.
| Specification |
Details |
| Product Type |
Phillips Countersunk Flat Head Machine Screws |
| Material |
Carbon steel with black finish |
| Drive Style |
Phillips cross‑head (use PH0 or PH00) |
| Head Style |
Flat / Countersunk (90°) |
| System of Measurement |
Metric |
| Grade |
4.8 |
| Thread Type |
Fully threaded, coarse pitch |
| Length Measurement |
Length includes head (total screw length) |
❓ FAQs – Micro Black Countersunk Screws
🔸 What devices typically use M1 to M2.5 screws?
These tiny screws are found in eyeglass hinges, watch bands, camera lens mounts, drone motors, smartphone internal brackets, model trains, and miniature instruments. They are also used in small electronics, medical devices, and hobbyist projects where space is extremely limited.
🔸 How is length measured for these countersunk screws?
For countersunk screws, length is measured as total screw length including the head – from the top of the flat head to the tip. For example, an M2 x 8mm screw is 8mm long overall. This matches how most original equipment manufacturers specify small fastener lengths.
🔸 Are these screws fully threaded? What pitch do they have?
Yes, all screws are fully threaded from under the head to the tip. They use standard metric coarse pitches: M1x0.25, M1.2x0.25, M1.4x0.3, M1.6x0.35, M2x0.4, M2.5x0.45. This ensures compatibility with standard nuts and tapped holes.
🔸 Will the black finish rust or wear off?
The black finish provides moderate corrosion resistance for indoor use. For outdoor or high‑moisture applications, we recommend stainless steel. The finish may show wear at the recess and tip with repeated driving, but it holds up well for typical electronics and instrument repairs.
🔸 What Phillips screwdriver size works for M1 through M2.5?
M1–M1.6: use PH000. M2–M2.5: use PH00 or PH0. A precision screwdriver set with interchangeable bits is essential for these micro sizes. Never use a PH1 – it will strip the recess immediately.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are standard machine screws – they require a matching metric nut (M1 to M2.5) or a pre‑tapped hole. They are not self‑tapping. For best results, use brass or steel nuts of the same thread size.
