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When you're reassembling a camera, securing a PCB standoff, or rebuilding a precision instrument, a stripped or oversized screw head can ruin hours of careful work. Engineers, electronics repair technicians, and detail-oriented DIYers who work with miniature hardware need fasteners that fit exactly right — and that's exactly what these M1.6 and M1.7 Phillips thin flat head machine screws are designed for.
Each set contains machine screws in your chosen size combination, available in M1.6 and M1.7 thread diameters with shaft lengths ranging from 1.6mm to 9mm (≈1/16" to ≈3/8"). Head dimensions vary by variant — for example, M1.6*3mm (D=2.8*0.6mm) means a 2.8mm head diameter and 0.6mm head height. Coating options include Nickel-Plated, Black Zinc, White Zinc, Black Nickel, 304 Stainless Steel Natural, and anti-loosening rubber-patched variants. Packs are available in 100, 200, 300, 400, and 500 pieces.
These screws are widely used in electronics assembly and repair (laptops, cameras, drones), precision optical instruments, RC models and hobby builds, and miniature mechanical assemblies where a low-profile flat head and reliable Phillips drive are essential. The thin flat head design sits flush or near-flush, making it a go-to choice for countersunk applications in tight enclosures.
| Thread Diameter | M1.6, M1.7 (metric ISO standard) |
|---|---|
| Head Type | Thin Flat Head (countersunk profile) |
| Drive Type | Phillips (cross recess) |
| Shaft Length Range | 1.6mm – 9mm (≈1/16" – ≈3/8") |
| Head Diameter Range | 2.5mm – 5mm (varies by variant; see D= in size option) |
| Head Height Range | 0.3mm – 1.2mm (varies by variant; see D= in size option) |
| Material | Carbon Steel (zinc-coated variants) or 304 Stainless Steel (natural variant) |
| Coating Options | Nickel-Plated, Black Zinc, White Zinc, Black Nickel, 304 Stainless Steel Natural, Black Zinc + Anti-Loosening Rubber, Nickel-Plated + Anti-Loosening Rubber |
| Pack Quantities | 100 / 200 / 300 / 400 / 500 PCS |
| Thread Standard | Metric (ISO) — not compatible with UNC/UNF |
| Tensile Strength | See variant options (contact us to confirm for specific grade) |
| Country of Origin | See variant options |
Generally, choose a screw length that is 2–3× the thickness of the material being fastened. For example, a 3mm screw (≈1/8") is typically suitable for materials around 1–1.5mm thick. Always account for the depth of the receiving thread or nut. When in doubt, go slightly longer and use a nut on the back side.
304 stainless steel variants generally offer a tensile strength of around 500–700 MPa. Carbon steel variants with zinc coatings typically fall in a similar range depending on heat treatment. For precision load-bearing applications, please contact us to confirm the specific grade and strength rating.
The 304 Stainless Steel Natural variants offer good corrosion resistance and are generally suitable for indoor and light outdoor use. Nickel-plated and zinc-coated variants provide moderate corrosion protection for indoor environments. For prolonged outdoor or marine exposure, the 304 stainless steel option is the recommended choice among the available coatings.
These screws follow the metric thread standard (ISO). M1.6 and M1.7 refer to the nominal outer diameter in millimeters. They are compatible with standard metric nuts and threaded inserts of the corresponding size. They are not compatible with UNC/UNF inch-standard fasteners.
The "D=" notation indicates the outer diameter and height of the screw head. For example, "M1.6*3mm (D=2.8*0.6mm)" means the screw has an M1.6 thread, a 3mm shaft length, a head diameter of 2.8mm, and a head height of 0.6mm. This helps you verify clearance in countersunk or recessed applications before ordering.
Nickel-Plated — Bright silver finish, moderate corrosion resistance; ideal for electronics and precision instruments. Black Zinc — Matte dark finish with good corrosion protection; popular in optical and camera equipment. White Zinc — Silver-gray finish with standard zinc corrosion protection. Black Nickel — Dark decorative finish with nickel-level corrosion resistance. 304 Stainless Steel Natural — Best corrosion resistance; recommended for humid or outdoor-adjacent environments. Anti-Loosening Rubber variants — Add a nylon/rubber patch to resist vibration-induced loosening.
Yes. M1.6 and M1.7 sizes are commonly used in laptops, camera bodies, drones, and precision instruments. The thin flat head profile keeps a low profile and the Phillips drive is compatible with standard JIS and Phillips #000 to #0 screwdrivers typically used in electronics repair. The wide range of head dimensions (D=) lets you match the exact countersink geometry of your device.
