🔍 Product Overview: M1–M1.8 Phillips Countersunk Flat Head Screws (Micro Sizes)
If you repair eyeglasses, watches, cameras, or drones, you know the struggle of finding reliable screws smaller than M2. These M1, M1.2, M1.4, M1.6, M1.7, and M1.8 Phillips countersunk flat head machine screws are made for precision work. Choose from carbon steel (with bright nickel, black zinc, or natural finish) or 304 stainless steel – so you get the strength and corrosion resistance your micro‑fastening job demands. The flat head sits flush in countersunk holes, perfect for tight assemblies where every millimeter matters. Whether you're restoring vintage jewelry, repairing a smartphone hinge, or building a miniature model, these tiny screws deliver without stripping or seizing.
✨ Why These Micro Countersunk Screws Are a Precision Repair Essential
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Ultra‑small metric sizes: M1 to M1.8 – The hard‑to‑find diameters for eyeglass frames, watch bands, miniature hinges, camera parts, and RC electronics.
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Phillips drive with flat countersunk head – The cross recess centers your smallest screwdriver, and the 82° flat head sinks flush for a smooth, snag‑free surface.
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Choice of carbon steel or 304 stainless steel – Carbon steel for everyday strength (with nickel/black zinc/natural plating). 304 stainless for maximum corrosion resistance in damp or outdoor mini‑projects.
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Fully threaded, GB standard – Threads run the entire length. Consistent metric coarse pitch (e.g., M1 x 0.25, M1.2 x 0.25, etc.) for reliable engagement with nuts or tapped holes.
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Multi‑purpose application – Ideal for eyewear repair, watchmaking, model engineering, electronics enclosures, medical devices, and any precision mechanical assembly.
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Available in multiple finishes – Bright nickel (silver), black zinc (dark), or natural carbon steel. Match or contrast with your project’s aesthetic.
📏 Technical Specifications – M1 to M1.8 Flat Head Phillips Screws
| Specification |
Details |
| Product Type |
Phillips Countersunk Flat Head Machine Screws |
| Material Options |
Carbon steel OR 304 stainless steel (select when ordering) |
| Surface Treatment (Carbon Steel) |
Bright nickel / Black zinc / Natural (unplated) – choose option |
| Finish (Stainless Steel) |
Natural (no plating, bright silver) |
| Head Style |
Flat / Countersunk (82° typical) |
| Drive Style |
Phillips cross‑head |
| Thread Sizes (Diameter) |
M1, M1.2, M1.4, M1.6, M1.7, M1.8 |
| Thread Pitch (approximate coarse) |
M1x0.25, M1.2x0.25, M1.4x0.3, M1.6x0.35, M1.7x0.35, M1.8x0.35 (GB standard) |
| Thread Type |
Fully threaded (full length) |
| Length |
Varies – select from product options (typical range 2mm–10mm) |
| System of Measurement |
Metric |
| Standard |
GB |
❓ FAQs – Micro Flat Head Screws (M1–M1.8)
🔸 What are the most common uses for M1–M1.8 screws?
These ultra‑small diameters are found in eyeglass hinge screws, watch band link pins, camera lens mounts, drone motor mounts, smartphone internal brackets, model train parts, and miniature tool repair. If a device uses a screw that looks like a tiny flathead but has a cross recess, it’s likely one of these.
🔸 Should I choose carbon steel or stainless steel?
Carbon steel (with nickel or black zinc plating) is stronger and less expensive – great for indoor repairs, eyewear, and general modeling. 304 stainless is best for moisture resistance (sweat, humidity, occasional water exposure) and where you never want rust. For watch bands or glasses that contact skin, stainless or nickel‑plated carbon steel are both fine.
🔸 What screwdriver size works for these tiny screws?
You’ll need a precision Phillips #000 or #00 (PH000 or PH00). A jeweler’s screwdriver set with interchangeable bits is essential. Never force a larger bit – you’ll strip the recess instantly. For M1 and M1.2, a PH000 is safest. For M1.4–M1.8, a PH00 often works.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from under the head to the tip. Length is measured as total screw length including the head (standard for countersunk screws). For example, an M1.4 x 4mm screw is 4mm overall from top of head to tip.
🔸 Will the black zinc finish wear off over time?
Black zinc provides a dark, corrosion‑resistant coating. With normal use, it may show light wear at the tip or on the recess after repeated driving, but it holds up well for most hobby and repair applications. If you need an invisible dark fastener for a black anodized part, it’s a good choice.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are machine screws – they require a matching metric nut (e.g., M1, M1.2, etc.) or a pre‑tapped hole. They are not self‑tapping. For plastic or soft wood, you can drill an undersized pilot hole and use them as wood screws, but a nut or insert is more reliable in tiny sizes.
