🔩 Product Overview: Pure Copper Phillips Countersunk Machine Screws (M2–M10)
Sometimes you need a screw that does more than just hold things together – you need conductivity, non‑magnetic properties, or a warm, antique look. These 99.9% pure copper (T2) Phillips countersunk machine screws deliver exactly that. The flat, 90‑degree countersunk head sits flush with the surface, making them perfect for woodworking, electrical grounding connections, marine DIY, or restoring vintage gear. Available in metric sizes from M2 all the way up to M10, and fully threaded with coarse pitch, they work with standard nuts or tapped holes. One important detail: length is measured including the head – so an M5 x 8mm screw is exactly 8mm total from top of head to tip. No guesswork.
✨ Why Go With Pure Copper Phillips Countersunk Screws?
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99.9% pure T2 copper – Excellent electrical conductivity (great for grounding bus bars or battery terminals). Naturally corrosion‑resistant in many environments, and develops a beautiful patina over time.
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Phillips drive with flat countersunk head – The cross recess centers your driver, and the 82°‑90° flat head sinks flush into a countersunk hole. No snagging, no protruding heads.
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Non‑magnetic and anti‑spark – Ideal for sensitive electronics, MRI rooms, or explosive environments where steel screws would be a problem.
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Full thread, coarse metric pitch – Threads run the entire length. Coarse pitch provides strong grip in softer materials like wood, plastic, and copper itself.
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Wide size range: M2 to M10 – From tiny M2 for circuit boards up to M10 for bus bars or furniture restoration. One product page covers almost all small‑to‑medium copper fastener needs.
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Length measured including head – What you see is what you get: M6 x 12mm means the whole screw is 12mm long. No confusion when matching existing holes.
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Trade discounts available for bulk orders – Contact us for pricing on larger quantities. The more you buy, the better the deal.
📏 Technical Specifications – Copper Countersunk Machine Screws (M2–M10)
| Specification |
Details |
| Product Type |
Phillips Countersunk (Flat Head) Machine Screws – Full Thread |
| Material |
99.9% Pure Copper, Grade T2 (solid copper, no plating) |
| Drive Style |
Phillips cross‑head |
| Head Style |
Countersunk / Flat head (82°‑90° typical, sits flush) |
| System of Measurement |
Metric |
| Thread Sizes (Diameter) |
M2, M2.5, M3, M4, M5, M6, M8, M10 |
| Thread Pitch (coarse) |
M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25, M10x1.5 |
| Length Measurement |
Total screw length including the head (e.g., M5 x 8mm = 5mm diameter, 8mm total length) |
| Thread Type |
Fully threaded (full thread from under head to tip) |
| MPN / Model |
Screw / None (generic) |
❓ FAQs – Pure Copper Countersunk Machine Screws (M2–M10)
🔸 Why would I choose copper screws over stainless steel or brass?
Copper offers three big advantages: 1) Excellent electrical conductivity – used for grounding and low‑resistance connections. 2) Non‑magnetic – critical for sensitive electronic equipment or MRI rooms. 3) Natural anti‑fouling properties and a unique appearance that develops an antique patina. Brass is harder, stainless is stronger, but nothing beats pure copper for conductivity and non‑sparking applications.
🔸 What’s the difference between “length including head” and “length under head”?
Most machine screws are measured from under the head to the tip (the threaded shank only). These copper screws are measured including the head – so the total screw length is what you see. For example, if you need a screw that fits a 10mm deep countersunk hole, order a 10mm length. Always double‑check your application’s depth before ordering.
🔸 Will pure copper screws corrode or turn green?
Yes – copper naturally oxidizes over time, forming a greenish patina (like the Statue of Liberty). This patina is protective and actually stops further corrosion. In dry indoor environments, they’ll stay shiny longer. For a permanently bright look, you can apply a clear lacquer. Many people choose copper specifically for that aged, vintage appearance.
🔸 Can I use these screws outdoors or in saltwater?
Copper performs well in marine environments – it’s often used on boats for grounding and hardware. However, avoid direct contact with aluminum (galvanic corrosion) without insulation. For extended saltwater immersion, silicon bronze is even tougher, but pure copper is still a solid choice for above‑water marine DIY.
🔸 Are these screws strong enough for structural use?
Copper is softer than steel – it’s not for high‑load structural applications. Use these where conductivity, non‑magnetism, or aesthetics matter: electrical panels, grounding straps, furniture accents, art installations, or restoring antique clocks and radios. For load‑bearing, use steel or stainless.
🔸 Do you offer volume discounts for larger orders?
Absolutely. We provide trade discounts for bulk purchases. Contact us directly with your desired sizes and quantities – the more you buy, the lower the per‑piece price. Perfect for manufacturers, restoration shops, or makers stocking up.
