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Whether you're assembling electronics enclosures, fabricating metal brackets, or building out DIY projects that need to hold up over time, finding the right metric machine screw in the right length shouldn't be a scavenger hunt. Hobbyists, makers, and maintenance professionals alike know the frustration of mismatched hardware — a screw that's 2mm too short, a nut that doesn't come with the order, or fasteners that rust after a single season outdoors.
Each pack includes Phillips pan head machine screws paired with matching hex nuts and flat washers, all made from A2 stainless steel (equivalent to 304 grade). Diameter options span M2 through M10, with lengths ranging from 3mm (≈1/8") up to 200mm (≈7.9") depending on the size selected. Pack quantities range from 1 to 50 pieces per order, so you can grab exactly what you need — no excess, no shortage.
These Phillips pan head machine screws are well-suited for electronics assembly and PCB standoff mounting, general-purpose metal fabrication and bracket work, and appliance or equipment repair where metric fasteners with corrosion resistance are required. The pan head profile distributes clamping load evenly and sits flush against flat surfaces without requiring a countersunk hole.
| Drive Type | Phillips (Cross) |
|---|---|
| Head Style | Pan Head |
| Material | A2 Stainless Steel (304 equivalent) |
| Thread Standard | ISO Metric (M-series) |
| Available Diameters | M2, M2.5, M3, M4, M5, M6, M8, M10 |
| Available Lengths | 3mm (≈1/8") – 200mm (≈7.9") — varies by diameter |
| Included Hardware | Machine screw + hex nut + flat washer (per set) |
| Pack Quantity | 1 / 2 / 3 / 5 / 10 / 20 / 30 / 40 / 50 pcs — see variant options |
| Finish | Natural stainless (uncoated) |
| Head Diameter | See variant options |
| Tensile Strength | Typically 500–700 MPa (A2-70 grade) |
| Operating Temperature | Contact us to confirm for extreme environments |
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 (4mm diameter) should typically engage at least 6mm into the base. Add the thickness of the material being fastened to get your total length. For quick reference: 10mm ≈ 3/8", 25mm ≈ 1", 50mm ≈ 2", 100mm ≈ 4".
A2 stainless steel machine screws generally have a tensile strength of around 500–700 MPa depending on diameter and grade (typically A2-70). For critical structural or high-load applications, please consult an engineer and confirm the specific grade with us before ordering.
A2 stainless steel (equivalent to 304 grade) offers good corrosion resistance in most outdoor environments including rain, humidity, and mild coastal exposure. For highly aggressive marine or saltwater environments, A4 (316) stainless is generally recommended. Contact us to confirm suitability for your specific conditions.
These screws follow the ISO metric thread standard (M-series), which is the most widely used standard internationally. They are compatible with standard metric nuts and threaded inserts of the corresponding size (M2, M2.5, M3, M4, M5, M6, M8, or M10). They are not compatible with UNC/UNF inch-standard fasteners.
Each pack includes Phillips pan head machine screws, matching hex nuts, and flat washers in the selected size. The pack quantity (number of complete sets) is shown in the Pack Size option — select the quantity that fits your project needs.
These are machine screws designed for use with pre-tapped holes, threaded inserts, or the included nuts — not for self-tapping into wood or plastic. They work well with aluminum, steel, and other metals, as well as plastic enclosures that have molded or tapped threads. For wood applications, wood screws or self-tapping screws are generally more appropriate.
These screws have a Phillips (cross) drive head. For smaller sizes (M2–M3), a PH0 or PH1 bit is typically used. For M4–M6, a PH2 bit is most common. For M8–M10, a PH3 bit may be needed. Always use a properly sized bit to avoid cam-out and head damage.
