🔩 A2 Stainless Steel Pozi Countersunk Machine Screws – Pozidrive Flat Head Bolts M3 to M6 | DIN 965
🏷️ Brand: HomeDIYer Fastener | DIN 965 | A2-70 | Fully Threaded | Countersunk Head
📌 Overview — Flush-fit fastening with superior driver engagement. When you need a perfectly smooth surface and reliable drive, our A2 Stainless Steel Pozi Countersunk Machine Screws (DIN 965) are the ideal choice. The 90° flat head sits flush with the workpiece when used in a countersunk hole, eliminating snags and providing a professional finish. The Pozidrive (PZ) recess offers better driver grip and less cam-out than Phillips, making assembly faster and reducing stripped heads. Fully threaded from M3 to M6, these metric coarse screws are perfect for electronics enclosures, furniture assembly, automotive trim, and general fabrication where a flush finish is critical. Made from A2-70 stainless steel, they resist rust and corrosion in indoor and outdoor environments. Choose your exact overall length – ideal for makers, repair techs, and production lines.
✨ Key Features of Pozi Countersunk Machine Screws
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Pozidrive (PZ) Recess – Enhanced driver engagement, reduced cam-out, and higher torque transfer than Phillips – less stripped heads.
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Countersunk 90° Flat Head – Sits flush with or below the surface when installed in a countersunk hole – no snagging, clean appearance.
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Fully Threaded (DIN 965) – Threads run the entire length for maximum grip; length is measured overall (includes head).
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A2-70 Stainless Steel (304 equivalent) – Excellent corrosion resistance for indoor, outdoor, and humid environments. No rust.
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Metric Coarse Threads M3–M6 – Standard pitches: M3x0.5, M4x0.7, M5x0.8, M6x1.0.
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Untreated Natural Stainless Finish – Clean, smooth surface with no coatings to chip or flake – professional appearance.
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Versatile Length Options – Order any overall length you need, from short (6mm) to longer (50mm+), fully threaded throughout.
📏 Technical Specifications – Pozi Countersunk Machine Screws (DIN 965, Metric Coarse)
| Thread Size |
Thread Pitch (mm) |
Head Diameter (mm) |
Head Height (mm) |
Fully Threaded |
| M3 |
0.5 |
5.4 |
1.65 |
✅ |
| M4 |
0.7 |
7.4 |
2.7 |
✅ |
| M5 |
0.8 |
8.8 |
3.1 |
✅ |
| M6 |
1.0 |
11.1 |
3.6 |
✅ |
💡 Length & ordering info: Screws are fully threaded. Length is measured overall (including the head) – this is standard for countersunk screws. Choose your preferred overall length (e.g., 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm) — sold as per your requirement. Contact us for bulk or custom-length orders.
🔧 Pozidriv vs. Phillips: Pozidriv bits have extra small ribs at 45° to the main cross. Use a genuine Pozidriv driver (marked “PZ”) for the best fit. Phillips drivers will work but may come out more easily. We recommend PZ bits for maximum torque and reduced slipping.
❓ Frequently Asked Questions – Pozi Countersunk Machine Screws
How is the length measured for countersunk screws?
📏 For DIN 965 countersunk machine screws, the length is measured overall – from the top of the head to the tip. This is different from pan head or button head screws (which measure under the head). Always verify your required length based on the overall measurement.
Do I need to countersink the hole before using these screws?
🔧 Yes. For the head to sit flush with the surface, you must pre-drill a 90° countersink. These screws are not self-countersinking. Proper countersinking ensures a professional finish and prevents material cracking (especially in wood or plastic).
What driver bit do I need for these Pozidriv screws?
📐 Use a genuine Pozidriv (PZ) bit. For M3-M4, PZ1 is suitable; for M5-M6, PZ2 works well. Phillips (PH) bits will fit loosely and may slip or damage the recess. We strongly recommend PZ bits for the best torque and minimal cam-out.
Are these screws fully threaded? What lengths are available?
✅ Yes, all sizes are fully threaded per DIN 965. Overall lengths from 6mm up to 50mm (common: 6,8,10,12,16,20,25,30,35,40,45,50mm). Custom lengths available for bulk orders – just let us know your requirement.
Are these screws corrosion-resistant for outdoor use?
🌊 Yes – A2-70 stainless steel (304 grade) provides excellent corrosion resistance for outdoor furniture, marine hardware, and coastal environments. They will not rust like carbon steel. For continuous saltwater immersion, consider A4 (316) stainless, but A2 is perfect for most exterior applications.
⚙️ HomeDIYer Fastener — Precision stainless steel countersunk screws for flush-mount applications. Order your exact size, length, and quantity today.
