DIN964 Slotted Raised Countersunk Head Screws
The DIN 964 Raised Countersunk Head Screw combines a partially countersunk head with a slightly raised upper surface, providing a different appearance and seating profile from a fully countersunk screw. Its slotted drive allows the screw to be installed with a conventional flat-blade screwdriver, while the metric machine thread provides a secure connection with a compatible threaded hole or nut.
The raised countersunk head offers a useful compromise between a low-profile countersunk fastening and a more prominent round or pan head. When installed into a suitable countersunk hole, part of the head sits below or close to the surrounding surface while the raised section remains visible. This makes the screw suitable for assemblies where head appearance, controlled seating, and traditional slotted installation are important.
Specification:
When specifying DIN 964 screws, the selection should be based on the thread requirements of the mating component, the available installation space, and the required material and surface condition. The nominal diameter and thread pitch determine thread compatibility, while the screw length should provide sufficient engagement without interfering with the opposite side of the assembly.
Material and finish can then be selected according to the working environment. Carbon steel is commonly used for general mechanical assemblies where strength and cost efficiency are important, while stainless steel is suitable for applications requiring improved corrosion resistance. For plated carbon steel screws, the coating can provide additional protection against corrosion. The required property class, surface finish, and dimensional tolerance should be confirmed according to the intended application and purchasing requirements.
| Item | Specification |
|---|---|
| Standard | DIN964 |
| Product Type | Raised Countersunk Head Screw |
| Drive | Slotted |
| Thread | Metric Machine Thread |
| Thread Diameter: | M1-M10 |
| Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Property Class | 4.8/8.8/10.9 A2-70/A4-70 |
| Surface Treatment | Bright Finish, Zinc Plated, Black Oxidation |
Dimension Chart of DIN964 Slotted Raised Countersunk Head Screws:
The dimension chart below shows the standard specifications of DIN 964 Slotted Raised Countersunk Head Screws, including thread diameter, pitch, head diameter, head height, and length options. These screws are designed with a raised countersunk head and slotted drive, providing a neat appearance and reliable fastening performance.
| Thread Size | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 | |
| P | Pitch | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| a | max | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 | 3 |
| dk | max=nominal size | 1.9 | 2.3 | 2.6 | 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 | 9.2 | 11 | 14.5 | 18 |
| min | 1.76 | 2.06 | 2.46 | 2.86 | 3.5 | 4.4 | 5.3 | 6.14 | 7.14 | 8.84 | 10.57 | 14.07 | 17.5 | |
| f | ≈ | 0.25 | 0.3 | 0.35 | 0.4 | 0.5 | 0.6 | 0.75 | 0.9 | 1 | 1.25 | 1.5 | 2 | 2.5 |
| k | max | 0.6 | 0.72 | 0.84 | 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 | 2.5 | 3 | 4 | 5 |
| n | nominal size | 0.25 | 0.3 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 |
| max | 0.45 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.2 | 1.51 | 1.91 | 2.31 | 2.81 | |
| min | 0.31 | 0.36 | 0.36 | 0.46 | 0.56 | 0.66 | 0.86 | 0.86 | 1.06 | 1.26 | 1.66 | 2.06 | 2.56 | |
| r | max | 0.1 | 0.12 | 0.14 | 0.16 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | 0.5 | 0.6 | 0.8 | 1 |
| R | ≈ | 2 | 2.5 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
| t | max | 0.5 | 0.6 | 0.65 | 0.8 | 1 | 1.2 | 1.45 | 1.7 | 1.9 | 2.3 | 2.8 | 3.7 | 4.6 |
| min | 0.4 | 0.5 | 0.52 | 0.65 | 0.8 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.4 | 3.2 | 4 | |
| x | max | - | - | - | 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
- RELATED SCREWS LISTS:
- Stainless Steel DIN7976 Hexagon Head Tapping Screws
- Stainless Steel DIN7982 Cross Recessed Countersunk Head Tapping Screws
- Stainless Steel DIN7983 Cross Recessed Raised Countersunk Head Tapping Screws
- Stainless Steel DIN7985 Cross Recessed Raised Cheese Head Screws
- DIN7964E Stainless Steel Socket Head Cap Captive Screw
- Stainless Steel DIN966 Cross Recessed Raised Countersunk Head Screws
- Stainless Steel DIN967 Cross Recessed Pan Head Screws with Collar
- Stainless Steel DIN968 Cross Recessed Pan Head Tapping Screws with Collar
- GB830 Stainless Steel Slotted Cheese Head Screws with Shoulder
- Stainless Steel GB831 Slotted Shoulder Screws
- Stainless Steel GB834 Knurled Thumb Screws
- Stainless Steel GB835 Knurled Screws
- Stainless Steel GB836Knurled Screws with Small Head
- Stainless Steel GB837 Slotted Pan Head Screws with Waisted Shank
- Stainless Steel GB839 Knurled Thumb Captive Screws with Waisted Shank
- Nickel Plated Smooth Shank Single Shoulder Shelf Support Screw
- Nickel Plated Furniture Shelf Peg with Matching Knurled Nut
Application of DIN964 Slotted Raised Countersunk Head Screws:
Precision Instruments and Small Equipment
The M1–M10 size range makes DIN 964 suitable for compact mechanical assemblies where relatively small fasteners are required. Typical applications include measuring instruments, optical equipment, laboratory devices, control instruments, small mechanisms, and precision equipment. Smaller sizes such as M1 to M4 are particularly useful where limited installation space and controlled fastening dimensions are important.
Electronic Equipment and Enclosures
The raised countersunk head provides a relatively low-profile seating arrangement for electrical enclosures, control panels, electronic equipment, instrument housings, appliance components, and sheet-metal assemblies. The slotted drive also provides a simple and familiar installation method for products where a traditional slotted fastener is specified.
Light Mechanical and General Assemblies
Larger sizes within the M5–M10 range can be used for machine covers, brackets, housings, guards, furniture hardware, light machinery, and general engineering components. Carbon steel versions are suitable for general indoor and mechanical applications, while stainless steel DIN 964 screws can be selected for moisture-exposed equipment, appliances, outdoor components, and applications requiring improved corrosion resistance.