🔩 Product Overview: Pozi Pan Head Machine Screws – A2 Stainless Steel (M3, M4, M5, M8)
If you're tired of Phillips drivers slipping out just when you need to tighten a screw, switch to Pozidriv. These Pozi pan head machine screws feature the Pozidrive (Pozi) recess – designed to give you better bite and significantly less cam‑out than standard Phillips. Made from A2 (304) stainless steel, they offer excellent corrosion resistance, high strength, and a clean, polished finish. Available in M3, M4, M5, and M8 metric diameters – fully threaded with standard coarse pitch. The low‑profile pan head sits flush on surfaces, making them perfect for electronics, furniture, automotive trim, and general DIY. Lengths vary – select what you need. Upgrade your fastening experience with reliable, non‑slipping Pozidriv drive.
✨ Why Choose A2 Stainless Pozi Pan Head Screws
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A2 stainless steel (304 grade) – Good corrosion resistance for indoor and outdoor use. High strength and toughness. Won't rust in humid environments.
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Pozidriv (Pozi) drive – Distinct from Phillips, the extra cross‑recesses provide greater torque transfer and reduce cam‑out. Your driver stays engaged, even under load.
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Pan head design – Low‑profile rounded head with a flat bearing surface. Distributes clamping force evenly and gives a clean, professional finish.
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Metric sizes M3, M4, M5, M8 – Covers a wide range from small electronics (M3) up to medium machinery (M8). Versatile for many projects.
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Fully threaded, coarse metric pitch – Standard threads: M3x0.5, M4x0.7, M5x0.8, M8x1.25. Threads run the entire shank length for maximum grip.
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Length measured under the head – No confusion: an M5 x 20mm screw has 20mm of threaded shank below the pan head. Select your length from options.
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Wide application range – Electronics, furniture, machinery, automotive, marine hardware, and general DIY.
📏 Technical Specifications – Pozi Pan Head Screws (A2 Stainless)
| Specification |
Details |
| Product Type |
Pozi Pan Head Machine Screws (Pozidriv drive) |
| Material |
A2 Stainless Steel (304 / 18-8) |
| Drive Style |
Pozidriv (Pozi) – use PZ1 for M3/M4, PZ2 for M5/M8 |
| Head Style |
Pan head (low‑profile rounded) |
| System of Measurement |
Metric |
| Screw Sizes (Diameter) |
M3, M4, M5, M8 |
| Thread Pitches (coarse) |
M3x0.5, M4x0.7, M5x0.8, M8x1.25 |
| Thread Type |
Fully threaded |
| Length Measurement |
Under head – from flat bearing surface to tip (head not included) |
| Length Range |
Select from options (typical: 4–60mm depending on diameter) |
| Finish |
Natural stainless (unplated) |
❓ FAQs – Pozi Pan Head Screws
🔸 What’s the difference between Pozidriv and Phillips? What driver bit do I need?
Pozidriv has additional smaller cross‑recesses at 45° angles and a blunter tip. A Phillips driver will fit loosely and will cam‑out or damage the recess. For M3 and M4, use a PZ1 Pozi driver. For M5 and M8, use a PZ2. Using the correct bit gives you much better torque without slipping.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from just under the head to the tip. Length is measured from the underside of the head (the flat bearing surface) to the tip, not including the pan head. For example, an M5 x 20mm screw has a 20mm threaded shank below the head.
🔸 Will A2 (304) stainless steel rust outdoors?
A2 stainless is highly resistant to moisture, rain, and humidity – perfect for most outdoor use. For direct saltwater immersion or heavy coastal spray, A4 (316) stainless is better, but for furniture, railings, and general outdoor DIY, 304 lasts for years without rust.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are standard machine screws – they require a matching metric nut (M3, M4, M5, or M8) or a pre‑tapped hole. They are not self‑tapping. For best corrosion resistance, pair them with A2 stainless nuts.
🔸 What lengths are available for M3, M4, M5, and M8?
Lengths vary by diameter – typical ranges: M3: 4–30mm, M4: 5–40mm, M5: 6–50mm, M8: 10–60mm. Please select your desired length from the dropdown options. If you need a length not listed, contact us.
🔸 Are these screws magnetic?
A2 stainless is generally non‑magnetic in its annealed state, but cold forming (like thread rolling) can make it slightly magnetic. A light magnetic response is normal and does not affect corrosion resistance.
