M1.0–M1.6 Phillips Flat Head Machine Screws — Flush-Fit Fastening for Precision Assemblies
When you're working on a compact electronics enclosure, a camera repair, or a precision instrument housing, standard-sized screws simply don't fit — and sourcing M1–M1.6 Phillips flat head machine screws in the exact length you need from a reliable US-stocked supplier is harder than it should be. These countersunk Phillips machine screws are stocked specifically for electronics technicians, hobbyist makers, watchmakers, and small-device repair professionals who need sub-2mm fasteners that actually arrive on time.
Each screw features a countersunk (flat) head with a Phillips (cross) drive recess, available in two surface finishes: Nickel Plated (bright silver) and Black Zinc (matte dark). Diameters range from M1.0 (≈0.039") to M1.6 (≈0.063"), with lengths from 3mm (≈1/8") to 10mm (≈3/8"). Sold in packs of 100, 500, or 1000 pieces to suit both prototyping and production runs.
Typical use cases include securing PCBs and standoffs inside compact electronics enclosures, fastening lens assemblies and housings in cameras and optical instruments, assembling small RC model components and drone frames, and replacing stripped or missing screws in consumer electronics repair — all applications where a flush-sitting countersunk head is essential to avoid interference with adjacent parts.
🔩 Compatibility: ISO metric thread standard (M-series). Requires a pre-tapped hole, threaded insert, or matching metric nut. A countersunk hole is needed for the head to sit flush. Not compatible with UNC/UNF imperial threads. Confirm thread pitch and countersink angle with your application before ordering.
✅ Key Features of These Phillips Flat Head Machine Screws
- 🛠️Countersunk Head for Flush Installation — The flat (countersunk) head sits level with or below the surface when installed in a matching countersunk hole, preventing interference with covers, mating parts, or adjacent components in tight precision assemblies.
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✨Two Surface Finishes Available — Choose Nickel Plated for a bright silver appearance common in electronics and optical work, or Black Zinc for a matte dark finish suited to dark enclosures and glare-sensitive assemblies.
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🔬Sub-2mm Diameter Range — M1.0 through M1.6 covers the most common micro fastener sizes used in PCB mounting, camera repair, watch servicing, and small consumer electronics — sizes that are genuinely hard to find locally.
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➕Phillips Drive for Controlled Installation — Compatible with PH000 and PH00 precision bits; works with jeweler's screwdrivers and precision electric drivers for controlled torque in delicate assemblies.
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📦Bulk Pack Options — 100 / 500 / 1000 pcs — Order a 100-piece pack for prototyping or repair kits, or step up to 500 or 1000 pieces for production runs and workshop stock — all at a per-piece price that scales with quantity.
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🏭ISO Metric Thread Standard — Fully compatible with standard metric nuts, threaded brass inserts, and tapped holes — a reliable fit for small-device assembly, model engineering, and precision instrument work.
📐 Technical Specifications — Phillips Flat Head Machine Screws
| Head Type |
Countersunk / Flat Head (flush-fit) |
| Drive Type |
Phillips (Cross) — PH000 / PH00 |
| Thread Standard |
ISO Metric (M-series) |
| Available Diameters |
M1.0, M1.2, M1.4, M1.6 |
| Available Lengths |
3mm (≈1/8") – 10mm (≈3/8"); see variant options |
| Thread Pitch |
See variant options / Contact us to confirm |
| Surface Finish |
Nickel Plated (bright silver) or Black Zinc (matte dark) |
| Pack Quantity |
100 pcs / 500 pcs / 1000 pcs |
| Countersink Angle |
Typically 90° — Contact us to confirm for your application |
| Corrosion Resistance |
Moderate — suitable for indoor and protected environments |
| Recommended Driver Bit |
PH000 (M1.0–M1.2) / PH00 (M1.4–M1.6) — typically |
| Country of Origin |
See variant options |
⚠️ Note: These are machine screws — they require a pre-tapped hole, threaded insert, or nut. They are not self-tapping. A countersunk hole is required for the head to sit flush. If you are unsure of the thread pitch or countersink angle for your application, please contact us before ordering.
❓ Frequently Asked Questions
How do I choose the right length for these tiny screws?
A general rule is to select a length approximately 2–3 times the thickness of the material being fastened. For example, a 1mm-thick PCB layer typically calls for a 3–4mm screw. All lengths are listed in millimeters — to convert: 3mm ≈ 1/8", 5mm ≈ 3/16", 10mm ≈ 3/8". When in doubt, choose the longer option for better thread engagement, provided it doesn't bottom out in a blind hole.
What is the load capacity of M1–M1.6 machine screws?
At this diameter range, these screws are designed for light-duty fastening in precision assemblies — not structural or load-bearing applications. They are generally used to secure PCBs, small enclosures, watch components, and optical instrument housings where clamping force rather than tensile load is the primary requirement. For any load-critical application, consult an engineer to confirm suitability.
Are these screws suitable for outdoor use?
Nickel-plated screws offer moderate corrosion resistance suitable for indoor and protected environments. Black zinc plating provides similar protection with a matte dark finish. Neither finish is generally recommended for prolonged outdoor or high-humidity exposure. For outdoor applications, stainless steel fasteners are typically a better choice.
What thread standard do these screws use — are they compatible with metric nuts?
These screws follow the ISO metric thread standard (M-series) and are compatible with standard metric nuts, threaded inserts, and tapped holes of the corresponding diameter. They are not compatible with UNC or UNF imperial-threaded components. Always verify thread pitch for your specific application before ordering.
What screwdriver or bit size do I need for M1–M1.6 Phillips screws?
M1.0–M1.6 Phillips screws typically require a PH000 or PH00 precision screwdriver bit. Using an oversized bit will damage the head recess. A precision jeweler's screwdriver set or electronics repair kit is generally the right tool for this size range. Always use the correct bit to avoid cam-out on these small heads.
What is the difference between nickel plated and black zinc finishes?
Nickel plating produces a bright silver finish and is commonly used in electronics and optical assemblies where a clean, reflective appearance is preferred. Black zinc plating produces a matte dark gray-to-black finish, often chosen for aesthetic reasons in dark-colored enclosures or when glare reduction is desired. Both finishes offer comparable corrosion resistance for indoor use.
Why choose a countersunk (flat) head over a pan head for small screws?
A countersunk head is designed to sit flush with or below the surface of the material when installed in a matching countersunk hole. This is important in precision assemblies where a protruding head would interfere with adjacent components, covers, or mating surfaces — common in PCB mounting, camera bodies, and instrument housings. If a flush finish is not required, a pan head may be easier to install without countersinking.
🛒 Select your size, surface finish, and quantity above, then add to cart — ships from our US warehouse.
