M5 x 20mm Pozi Pan Head Thread Forming Screws (DIN 7500C) - Stainless Steel (A2) Description
The M5 x 20mm Pozi Pan Head Thread Forming Screws (DIN 7500C) - Stainless Steel (A2) has the following features:
- Drive Size: PZ2
- Natural Finish
- For Use With: Plastics, Thin Composite Materials, and Light Metals, e.g. Aluminium, Brass and Sheet Steel.
- Head Diameter (D): 10 mm
- Head Height (H): 3.95 mm
- Length (L): 20 mm
- Manufacturing Standard: DIN 7500C
- Stainless Steel - (A2)
- Stainless Steel Material Family
- Not Suitable For Use With: Ferrous Metals
- Pitch: 0.8 mm
- System of Measurement: Metric
- Thread Size: M5 (5 mm)
- Thread Type: Trilobular
Discover more about the Pozi Pan Head Thread Forming Screws range.
Pozi pan head thread forming screws are advanced self-threading fasteners that combine three key features: a high-torque Pozi drive, the versatile pan head profile and the precision of a trilobular thread-forming shank. These innovative screws are designed to be driven directly into untapped pilot holes, where they create their own machine threads by displacing material rather than cutting it.
Their pan head is a popular, general-purpose choice, featuring a slightly domed top and a flat load-bearing underside, allowing it to sit securely on top of the workpiece. This is paired with a Pozi drive, which offers excellent driver engagement and reduced risk of cam-out. Like all thread-forming screws, they feature a specialised trilobular shank that cold-forms the host material, resulting in a strong, vibration-resistant fastening.
How Pozi Pan Head Thread Forming Screws Work
The functionality of our Pozi pan head thread forming screws is engineered for efficiency and reliability. When driven into a pilot hole, the screw's trilobular shank applies pressure to the ductile host material (such as plastic or sheet metal). This action forces the material to cold-flow into the screw's thread valleys, forming a perfect, zero-swarf thread.
The flat base of the Pan Head then seats firmly against the mating surface, providing a solid, reliable clamping force. This method creates a joint that is exceptionally resistant to loosening, making Pozi pan head self-threading screws a superior choice for dynamic or high-vibration environments.
Materials Pozi Pan Head Thread Rolling Screws Are Made From
Our range of Pozi pan head thread rolling screws is manufactured from high-quality materials to ensure performance, reliability and corrosion resistance. We offer options to suit any engineering project or assembly application:
- A2 Stainless Steel: Provides excellent corrosion resistance, making it suitable for a wide range of applications, including those with moisture exposure.
- A2 Stainless Steel (Black Oxide Finish): Offers the same corrosion resistance as A2 stainless steel but with a non-reflective, aesthetic black finish.
- Steel (Bright Zinc Plated): A strong, reliable steel fastener with a standard zinc coating for good corrosion resistance in most indoor environments.
- Steel (Black Zinc Plated): Provides the same strength and protection as BZP steel, but with a sleek black finish for visual continuity or low-reflectivity needs.
Sizes and Types of Pozi Pan Head Thread Forming Screws Available
To support projects of all sizes, our Pozi pan head thread rolling screws are available in a comprehensive selection of metric sizes. This range includes thread diameters from M2.5 (2.5mm) up to M8 (8mm), ensuring a precise fit for applications from delicate electronics to more robust mechanical assemblies. With available lengths spanning from 4mm to 40mm, you can source the exact component required for your design, delivered with Accu's signature speed and reliability.
FAQs
Q: What is the advantage of a Pozi drive on a pan head thread forming screw?
A: The Pozi drive is an enhancement of the traditional Phillips cross-head, designed for higher torque transmission and reduced cam-out. This is a significant advantage for thread-forming screws, as it allows for the consistent driving force needed to displace material and form a strong thread without damaging the screw head or driver bit, especially in automated assembly.
Q: Are Pozi pan head self-threading screws suitable for both metal and plastic?
A: Yes, Pozi pan head thread forming screws are specifically designed to work in ductile (softer) materials. This makes them highly effective for creating strong machine threads in both engineering thermoplastics and soft metals like aluminium, brass, and thin-gauge sheet steel.
