Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Anyone who has cracked open a laptop, reassembled a tablet, or built a custom electronics enclosure knows the frustration of stripped screws, mismatched threads, or fasteners that sit proud of the surface and snag cables. These Phillips flat head machine screws are sized specifically for the metric thread standards used in modern consumer electronics, giving hobbyists, repair technicians, and engineers a reliable go-to fastener for precision work.
Each screw features a countersunk flat head profile machined to ISO metric dimensions, with a nickel-plated steel body for a clean, corrosion-resistant finish. Thread diameters span M2, M2.5, M3, and M4, with lengths ranging from 3mm (≈1/8") to 16mm (≈5/8"). Quantity options run from 10-piece sample packs up to 1,000-piece bulk bags, so you can stock exactly what your project demands.
Typical use cases include laptop and notebook chassis reassembly, SSD and HDD bracket mounting, 3D printer frame fastening, RC car and drone body panels, and custom aluminum electronics enclosures — anywhere a flush, low-profile fastener is needed in a metric-threaded hole.
| Drive Type | Phillips (Cross / PH) |
|---|---|
| Head Style | Flat Head (Countersunk) |
| Thread Standard | ISO Metric |
| Thread Diameters | M2, M2.5, M3, M4 |
| Available Lengths | 3mm (≈1/8"), 4mm (≈5/32"), 5mm (≈3/16"), 6mm (≈1/4"), 8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈15/32"), 16mm (≈5/8") |
| Material | Steel with Nickel Plating |
| Finish | Nickel Plated (bright) |
| Quantity Options | 10, 20, 50, 100, 200, 500, 1000 Pcs |
| Recommended Driver | PH0 / PH1 (M2–M2.5); PH1 / PH2 (M3–M4) |
| Thread Pitch | See variant options |
| Head Diameter | See variant options |
| Countersink Angle | Contact us to confirm |
| Country of Origin | Contact us to confirm |
Generally, choose a length that allows the screw to engage at least 1.5× its diameter into the receiving material. For example, an M3 screw typically needs at least 4–5mm of thread engagement. For laptop chassis reassembly, 3–6mm (about 1/8" to 1/4") lengths are most common. Always measure the material thickness before selecting your length.
These screws are generally suited for light-to-medium duty fastening in electronics and precision assemblies. The clamping force is typically sufficient for laptop panels, SSD brackets, and enclosure covers. For load-bearing structural applications, a higher-grade (e.g., Grade 8.8 or 10.9) steel screw is generally recommended.
The nickel plating provides moderate corrosion resistance, making these screws well-suited for indoor electronics and light-humidity environments. For prolonged outdoor exposure, marine environments, or high-moisture conditions, stainless steel fasteners are generally a better choice.
These screws follow the ISO metric thread standard (M2, M2.5, M3, M4), which is the international standard used in most laptops, consumer electronics, and precision equipment worldwide. They are compatible with standard metric nuts, threaded inserts, and tapped holes of the corresponding size.
Yes. These screws use a standard Phillips (cross) drive. For M2 and M2.5, a PH0 or PH1 driver is typically recommended to avoid cam-out. For M3 and M4, a PH1 or PH2 driver is generally appropriate. Using the correct driver size helps protect the head recess during installation.
A flat head (countersunk) screw is designed to sit flush with or below the surface of the material when installed in a matching countersunk hole. This is ideal for laptop panels, electronics enclosures, and any application where a smooth, snag-free surface is required. Pan head and button head screws sit above the surface and are better suited for applications where countersinking is not possible.
Here are the approximate inch equivalents for each available length: 3mm ≈ 1/8", 4mm ≈ 5/32", 5mm ≈ 3/16", 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 15/32", 16mm ≈ 5/8". When in doubt, measure your existing screw with a caliper for the most accurate match.
M2 and M2.5 are typically used in ultrabooks, tablets, and small electronics where space is tight. M3 is the most common size in standard laptops, desktop PC components, and 3D printer frames. M4 is generally used in heavier enclosures, RC vehicles, and light mechanical assemblies. If you're replacing an existing screw, measure the shank diameter with a caliper or match it to the threaded hole size.
