What driver bit do I need for these screws?

These use a standard Phillips (cross) drive. For M2–M3, a PH0 or PH1 bit is typically used. For M4–M6, a PH2 bit is generally appropriate. For M8–M10, a PH3 bit may be needed. Always use the correct bit size to avoid cam-out and head damage, especially with softer copper.

How do I convert the screw lengths to inches?

Common conversions: 4mm ≈ 5/32", 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 15/32", 16mm ≈ 5/8", 20mm ≈ 25/32", 25mm ≈ 1", 30mm ≈ 1-3/16", 40mm ≈ 1-9/16", 50mm ≈ 2".

Copper Phillips Pan Head Machine Screws M2–M10, Multiple Lengths & Pack Sizes

Copper Phillips Pan Head Machine Screws M2–M10, Multiple Lengths & Pack Sizes

Name: Copper Phillips Pan Head Machine Screws M2–M10, Multiple Lengths & Pack Sizes
Brand: HomeDIYer
SKU: GLFBQLPNNGM01592x1
Price: 10.05 USD
Availability: OutOfStock

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Copper Phillips Pan Head Machine Screws — Reliable Fastening for Electronics & Precision Work

When your project demands both conductivity and corrosion resistance in a single fastener, standard steel screws fall short. Engineers, electronics hobbyists, and precision instrument builders who work with PCBs, grounding assemblies, and sensitive enclosures need a screw that won't introduce galvanic issues or rust contamination — and that's exactly where copper Phillips pan head machine screws deliver.

Each pack contains copper Phillips pan head machine screws in your chosen thread diameter and length. Thread diameters range from M2 through M10 (approximately 5/64" to 25/64"), and shaft lengths (not including the head) span 4mm (≈5/32") to 50mm (≈2"), available in pack quantities from 1 to 150 pieces. The pan head profile features a low, rounded top with a flat bearing surface, distributing clamping load evenly without digging into soft substrates.

These screws are well suited for PCB standoff fastening and grounding connections, bus bar and electrical panel assembly, precision instrument enclosures, and light-duty mechanical assemblies where non-magnetic or conductive fasteners are required.

🔩 Compatibility: ISO metric thread standard — fits standard metric nuts, threaded inserts, and tapped holes (M2–M10). Phillips drive compatible with PH0–PH3 bits depending on size.

✅ Key Features of These Copper Phillips Pan Head Machine Screws

⚡Electrically Conductive Copper Material — Ideal for grounding screws, bus bar fastening, and PCB mounting where electrical conductivity is required, unlike zinc-plated steel alternatives.
🛡️Natural Corrosion Resistance — Copper develops a protective patina over time, making these screws suitable for humid environments and light outdoor enclosures without additional coating.
🔩Pan Head Profile for Flush Clamping — The low-profile rounded head with flat underside distributes load evenly across the mating surface, reducing the risk of cracking delicate panels or PCB substrates.
📐Wide Size Range: M2 to M10 — Covers the most common metric thread diameters used in electronics and light mechanical assembly, from fine M2 (≈5/64") up to M10 (≈25/64"), with lengths from 4mm to 50mm.
📦Flexible Pack Quantities — Available in packs from 1 to 150 pieces, so you can order exactly what your project needs — whether a one-off repair or a production run of precision assemblies.
🔧Standard Phillips Drive for Easy Installation — Compatible with common PH0–PH3 Phillips bits, making these screws straightforward to install with hand tools or power drivers in tight spaces.

📐 Technical Specifications — Copper Phillips Pan Head Machine Screws

Material	Copper alloy
Head Type	Pan head (low-profile, rounded top, flat underside)
Drive Type	Phillips (cross) — PH0 to PH3 depending on size
Thread Standard	ISO metric (M2, M2.5, M3, M4, M5, M6, M8, M10)
Thread Diameter Range	M2 (≈5/64") to M10 (≈25/64")
Length Range (shaft only, not including head)	4mm (≈5/32") to 50mm (≈2")
Pack Quantity Options	1, 2, 3, 4, 5, 6, 10, 15, 20, 25, 30, 40, 50, 60, 90, 100, 150 pcs
Finish	Natural copper (bare, uncoated)
Magnetic Properties	Non-magnetic
Recommended Use	Electronics, PCB assembly, grounding, precision instruments, light mechanical assembly
Thread Fit	See variant options
Head Diameter	See variant options / Contact us to confirm
Country of Origin	Contact us to confirm

⚠️ Note: Copper is softer than steel. Avoid over-torquing, especially in smaller sizes (M2–M3). Use the correct Phillips bit size to prevent cam-out and head damage.

❓ Frequently Asked Questions

How do I choose the right screw length for my application?

A general rule: the screw length (not including the head) should be at least 1.5× the thread diameter for a secure hold. For example, an M3 screw typically works well at 6–12mm (about 1/4"–1/2") for most panel or PCB standoff applications. Always measure the material thickness and add the engagement depth needed in the receiving thread. When in doubt, go slightly longer — you can always use a washer or spacer to adjust.

What is the load-bearing or clamping strength of these screws?

Copper is generally softer than steel, so these screws are best suited for light-duty clamping and fastening in electronics, PCB assemblies, and precision instruments. They are not recommended for high-torque or structural load-bearing applications. Exact tensile values depend on the specific alloy; contact us to confirm if you have critical load requirements.

Are these screws suitable for outdoor or corrosive environments?

Copper has naturally good corrosion resistance and will generally develop a protective patina over time. These screws are typically suitable for humid or mildly corrosive environments. However, for fully submerged or highly aggressive chemical environments, verify compatibility with your specific conditions before use. In most cases, copper outperforms uncoated steel in moisture-rich settings.

What thread standard do these screws follow — are they compatible with standard metric hardware?

These screws follow the ISO metric thread standard (M2, M2.5, M3, M4, M5, M6, M8, M10), which is the international standard used worldwide. They are compatible with standard metric nuts, threaded inserts, and tapped holes machined to ISO tolerances. In most cases, they will fit any metric-threaded component of the matching diameter.

Can I use these in electronics or PCB assemblies?

Yes — this is one of the most common use cases for copper machine screws. Copper's electrical conductivity makes these screws a popular choice for grounding connections, bus bar fastening, and PCB mounting where conductivity matters. The Phillips pan head profile sits flush against flat surfaces without damaging delicate board components. They are also non-magnetic, which is important in sensitive electronic environments.

What Phillips driver bit size do I need?

The correct bit size depends on the screw diameter. As a general guide: M2–M3 typically uses a PH0 or PH1 bit; M4–M6 generally uses a PH2 bit; M8–M10 may require a PH3 bit. Always use the correct bit size to avoid cam-out and head damage, which is especially important with softer copper material. Hand-tightening is recommended for smaller sizes.

How do I convert these metric lengths to inches?

Here are common conversions for the lengths available: 4mm ≈ 5/32", 5mm ≈ 3/16", 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 15/32", 14mm ≈ 9/16", 16mm ≈ 5/8", 18mm ≈ 23/32", 20mm ≈ 25/32", 25mm ≈ 1", 30mm ≈ 1-3/16", 35mm ≈ 1-3/8", 40mm ≈ 1-9/16", 50mm ≈ 2".

🛒 Select your thread diameter x length and pack quantity above, then add to cart — ships from our US warehouse.