Product Description
M4 A2 Stainless Steel Countersunk Pozi Machine Screws
These M4 countersunk machine screws are manufactured from A2 stainless steel and feature a Pozi cross recess. The flat countersunk head is designed to sit flush with the surrounding surface when fitted into a correctly formed countersunk hole.
They have a standard M4 metric coarse thread and can be used with compatible M4 threaded holes or M4 nuts. Their corrosion-resistant construction and flush-fitting head make them suitable for machinery, electrical equipment, fabrication and general assembly applications.
Key Features
- Thread size: M4 metric coarse
- Thread pitch: 0.7mm
- Material: A2 stainless steel
- Head style: Countersunk flat head
- Drive type: Pozi cross recess
- Recommended driver size: PZ2
- Head diameter: Approximately 7.5mm
- Head height: Approximately 2.2mm
- Former standard designation: DIN 965Z
- Current corresponding standard: ISO 7046-2 / BS EN ISO 7046-2:2011
Length measurement: Countersunk machine screws are measured over their complete length, including the head.
Typical Applications
- Machinery and equipment assembly
- Electrical and electronic equipment
- Automotive and general engineering projects
- Metal fabrication and panel installation
- Fixtures requiring a flush-fitting screw head
- Indoor and general outdoor assemblies
A2 Stainless Steel
A2 stainless steel provides good corrosion resistance for indoor use and general outdoor applications. For marine, coastal, swimming-pool or chemically aggressive environments, an A4 stainless steel machine screw may be more suitable.
When assembling stainless steel screws with stainless steel nuts or threaded components, a suitable anti-seize compound can help reduce the risk of thread galling.
Related Products and Technical Information
- M3 A2 stainless countersunk Pozi machine screws
- View metric A2 stainless countersunk Pozi machine screws
- View all machine screws
- Metric thread data guide
- How to measure bolts and screws
- A2 versus A4 stainless steel guide
- Stainless steel thread galling guide
Please note: Dimensions are provided as a guide. If compliance with a particular standard, material property class or dimensional tolerance is essential, please confirm suitability before ordering.

| A | B | C | D | E |
| 4mm | 10mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 12mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 16mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 20mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 25mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 35mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 50mm | 7.5mm | 2.2mm | 0.7 |
| 4mm | 8mm | 7.5mm | 2.2mm | 0.7 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.