đŠPozi Pan Machine Screws - A2 Stainless Steel Pozidrive Bolts M2 to M4 | HomeDIYer
Upgrade your precision projects with our premium A2 stainless steel Pozi pan machine screws! These high-quality Pozidrive bolts feature a low-profile pan head and advanced Pozidrive drive system for superior torque transmission and reduced cam-out. Perfect for electronics, machinery, appliances, and precision assemblies where corrosion resistance and reliable fastening are essential. Compliant with DIN 7985 standard.
âĄReduced Cam-Out: The Pozidrive drive system features additional ribs between the main slots, allowing for better bit engagement and significantly reduced screwdriver slippage compared to standard Phillips heads.
đ Available Sizes for Stainless Steel Machine Screws
M2
2mm Thread
0.4mm Pitch
M2.5
2.5mm Thread
0.45mm Pitch
M3
3mm Thread
0.50mm Pitch
M3.5
3.5mm Thread
0.60mm Pitch
M4
4mm Thread
0.70mm Pitch
đ Detailed Machine Screw Specifications
| Thread Size |
Thread Pitch |
Head Diameter |
Head Height |
Drive Type |
| M2 Machine Screw |
0.4 mm |
4.0 mm |
1.72 mm |
Pozidrive (PZ) |
| M2.5 Machine Screw |
0.45 mm |
5.0 mm |
2.12 mm |
Pozidrive (PZ) |
| M3 Machine Screw |
0.50 mm |
6.0 mm |
2.52 mm |
Pozidrive (PZ) |
| M3.5 Machine Screw |
0.60 mm |
7.0 mm |
2.82 mm |
Pozidrive (PZ) |
| M4 Machine Screw |
0.70 mm |
8.0 mm |
3.25 mm |
Pozidrive (PZ) |
Material: A2-70 Stainless Steel Standard: DIN 7985 Drive: Pozidrive (PZ) Head: Pan Head Thread: Fully Threaded Finish: Untreated
đ Pozi vs Phillips: Drive System Comparison
đ§
Pozidrive (PZ)
⢠Additional ribs
⢠Reduced cam-out
⢠Higher torque
⢠PZ bits required
đ
Phillips (PH)
⢠Standard cross
⢠More cam-out
⢠Lower torque
⢠PH bits used
⨠Key Features of A2 Stainless Steel Machine Screws
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Superior Drive System: Pozidrive machine screws offer better bit engagement and reduced slippage compared to Phillips screws.
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Corrosion Resistant: Made from A2-70 (304) stainless steel for excellent rust resistance in various environments.
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Low-Profile Design: The pan head provides a smooth, rounded top with a flat bearing surface.
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Precision Threading: Fully threaded metric coarse threads for consistent engagement and holding power.
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Standard Compliant: Manufactured to DIN 7985 standards ensuring precise dimensions and reliable performance.
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Wide Size Range: Available in 5 precision sizes from M2 to M4 for various applications.
đ§ Ideal Applications for Pozidrive Machine Screws
These precision stainless steel machine screws are perfect for:
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Electronics & Appliances: Circuit boards, control panels, and small device assembly
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Precision Machinery: CNC equipment, 3D printers, and laboratory instruments
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Automotive Components: Interior panels, dashboard assemblies, and electrical systems
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Metal Fabrication: Joining thin metal sheets and precision components
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DIY & Hobby Projects: Model building, robotics, and precision woodworking
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Outdoor Equipment: Marine electronics, outdoor lighting, and weather-resistant assemblies
â Frequently Asked Questions (FAQ) About Machine Screws
Q: What is the difference between Pozidrive and Phillips screw heads?
A: Pozidrive (PZ) screws have additional smaller ribs between the main cross slots, creating better tool engagement and significantly reducing cam-out (screwdriver slippage). Phillips (PH) screws have a simple cross design and are more prone to cam-out under higher torque. They require different screwdriver bits.
Q: Can I use a Phillips screwdriver on Pozidrive screws?
A: While a Phillips bit might fit loosely in a Pozidrive screw, it's not recommended. Using the wrong bit increases the risk of damaging the screw head, causing cam-out, and reducing torque capability. Always use the correct PZ bit for Pozidrive machine screws.
Q: Are these machine screws fully threaded or partially threaded?
A: These pan head machine screws are fully threaded from just below the head to the tip. This allows for maximum thread engagement regardless of material thickness and makes them versatile for various applications.
Q: What does "M3.5" mean in machine screw sizes?
A: M3.5 is a less common but important metric size where "M" stands for metric, "3.5" indicates the nominal thread diameter in millimeters (3.5mm). It's particularly useful in precision applications where sizes between M3 and M4 are needed. These metric machine screws follow standard metric coarse thread pitches.
Q: Are A2 stainless steel screws suitable for outdoor use?
A: Yes, A2 (304) stainless steel offers excellent corrosion resistance for most outdoor applications. These stainless steel machine screws resist rust from weather exposure, making them suitable for outdoor equipment, marine electronics (above waterline), and exterior fixtures. For saltwater marine environments, A4 (316) stainless is recommended.
Q: What length options are available for these machine screws?
A: Screw lengths are typically sold separately and are not included in the head dimensions listed. When ordering Pozi pan screws, you would select both the diameter (M2, M2.5, M3, M3.5, M4) and the desired length. Length is measured from under the head to the tip (not including the head height).
