Black Phillips Pan Head Machine Screws M2–M8 — Secure Any Assembly with Confidence
Whether you're assembling electronics enclosures, mounting brackets, building RC models, or tackling a home workshop project, finding the right small fastener in the right finish can be surprisingly frustrating. Mismatched hardware, missing washers, and bare metal screws that stand out against dark surfaces are common pain points for makers, hobbyists, engineers, and DIYers alike.
Each set includes Phillips pan head machine screws in your selected size and quantity (5, 10, or 20 pieces), paired with matching flat washers and spring (lock) washers. The screws are finished in black — typically black oxide or black zinc — giving them a clean, low-profile appearance. Sizes span M2 through M8, with lengths ranging from 4mm (≈5/32") to 50mm (≈2"), covering a wide range of panel thicknesses and engagement depths.
These black Phillips pan head machine screws are well suited for electronics chassis assembly, 3D printer frame hardware, furniture and cabinetry hardware mounting, and general metric fastener replacement in mechanical assemblies. The included spring washers help resist loosening in vibration-prone environments, making them a practical choice for anything that moves or vibrates during operation.
🔩
Metric ISO Thread Compatibility: These screws follow the ISO metric thread standard and are compatible with standard metric nuts, threaded inserts, and tapped holes (M2, M2.5, M3, M4, M5, M6, M8). Verify your thread pitch before ordering if working with precision-tapped components.
✅ Key Features of These Black Phillips Pan Head Machine Screws
-
⚫Black Finish for Clean Aesthetics — The black oxide or black zinc coating blends seamlessly into dark enclosures, anodized aluminum frames, and painted surfaces, eliminating the visual clutter of bare silver hardware in visible assemblies.
-
🔄Spring Washer Included for Vibration Resistance — Each set comes with a matching spring (lock) washer that bites into the mating surface under torque, helping prevent self-loosening in applications subject to vibration or thermal cycling.
-
📐Wide Size Range — M2 to M8 — With sizes from M2×4mm through M8×50mm, these black machine screws cover the most common metric fastener needs for electronics, robotics, 3D printers, and general DIY hardware projects.
-
🔧Pan Head Profile for Broad Clamping Surface — The pan head design provides a wider bearing surface than countersunk heads, distributing clamping load across a larger area and reducing the risk of pull-through in softer materials like plastic or thin sheet metal.
-
✏️Standard Phillips Drive — No Special Tools Needed — The Phillips cross recess works with any standard PH0, PH1, or PH2 screwdriver or bit, making these screws easy to install and remove with tools already in your kit.
-
📦Flexible Quantity Options — 5, 10, or 20 Pieces — Order exactly what you need for a single repair or stock up for ongoing projects. Each pack includes screws, flat washers, and spring washers, so you have a complete fastener assembly ready to go.
📐 Technical Specifications — Black Phillips Pan Head Machine Screws
| Drive Type |
Phillips (Cross / PH) |
| Head Style |
Pan Head |
| Finish / Coating |
Black (black oxide or black zinc — see variant options) |
| Thread Standard |
ISO Metric (M2, M2.5, M3, M4, M5, M6, M8) |
| Available Diameters |
M2, M2.5, M3, M4, M5, M6, M8 |
| Available Lengths |
4mm (≈5/32") to 50mm (≈2") — see variant options |
| Included Hardware |
Machine screw + flat washer + spring (lock) washer |
| Pack Quantities |
5 Pcs / 10 Pcs / 20 Pcs |
| Material |
Carbon steel (typically); confirm grade for structural use |
| Recommended Driver |
PH0 or PH1 for M2–M3; PH2 for M4–M8 |
| Corrosion Resistance |
Moderate — suitable for indoor and dry environments |
| Country of Origin |
Contact us to confirm |
⚠️
Heads up: If you need these screws for a structural, load-bearing, or outdoor application, please contact us to confirm the material grade and finish before ordering. Specifications can vary by batch.
❓ Frequently Asked Questions
How do I choose the right screw length for my project?
A general rule is to select a length that allows the screw to penetrate the base material by at least 1.5× the screw diameter. For example, an M4 screw fastening a 3mm panel into aluminum would typically need at least 8–10mm of total length. Available lengths in this listing range from 4mm (≈5/32") to 50mm (≈2"), so measure your stack-up — panel thickness plus washer thickness plus engagement depth — before selecting.
What material are these screws made from?
These screws are generally made from carbon steel with a black oxide or black zinc finish. The black coating provides a degree of corrosion resistance and a clean, uniform appearance suitable for visible assemblies. Contact us to confirm the specific grade if you need this information for engineering documentation.
Are these screws suitable for outdoor or high-humidity use?
Black oxide and black zinc finishes offer moderate corrosion resistance, but are generally not recommended for prolonged outdoor exposure or salt-spray environments without additional protection such as a sealant or grease. For fully outdoor applications, stainless steel fasteners are typically a better choice.
What thread standard do these screws use, and are they compatible with standard metric nuts?
These are metric machine screws following the ISO metric thread standard (M2, M2.5, M3, M4, M5, M6, M8). They are compatible with standard metric nuts, threaded inserts, and tapped holes machined to ISO tolerances. They are not compatible with UNC/UNF inch-standard threads.
What does each set include — just the screw, or washers too?
Each set includes the selected quantity (5, 10, or 20 pieces) of Phillips pan head machine screws in your chosen size, along with matching flat washers and spring (lock) washers. The spring washer helps prevent loosening under vibration, and the flat washer distributes the clamping load under the head.
Can I use these screws with a standard Phillips screwdriver?
Yes. The pan head features a standard Phillips (cross) recess. For smaller sizes like M2–M3, a PH0 or PH1 driver is typically used; for M4–M8, a PH2 driver is generally appropriate. Using the correct driver size minimizes cam-out and protects the recess from stripping.
What is the clamping or load-bearing strength of these screws?
Clamping strength depends on the screw diameter, material grade, and installation torque. As a general reference, M3 carbon steel screws are typically rated for several hundred newtons of tensile load, while M8 screws can handle significantly higher loads. Consult a fastener torque chart for your specific grade before use in structural applications. Contact us to confirm the grade if needed.
What's the difference between the flat washer and the spring washer included in the set?
The flat washer sits directly under the screw head and distributes the clamping force over a larger surface area, reducing the risk of the head pulling through softer materials. The spring (lock) washer is a split ring that applies a spring force against the fastener, helping resist loosening caused by vibration or thermal expansion. In most assemblies, both are used together: flat washer first, then spring washer, then the screw head.
🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.
