DIN 88 specifies slotted oval head screws, a type of machine screw used in various fastening applications. These screws feature an oval head with a slotted drive, allowing for easy installation and removal with a flathead screwdriver. The oval head design provides a smooth, low-profile appearance that is preferred in some applications.
Key Features of DIN 88 Screws
- Head Type: Oval Head (low, smooth)
- Drive Type: Slotted (compatible with flathead screwdrivers)
- Thread Type: Metric coarse thread
- Material Options: Available in steel (plain, zinc-plated), stainless steel (A2, A4), brass, and other corrosion-resistant materials
- Sizes: M1.6 to M20 (and sometimes larger)
Applications of DIN 88 Screws
DIN 88 screws are used in various applications, including:
- Precision Mechanical Assembly: Applications where a smooth head is desired.
- Optical Devices: Fastening in optical equipment and instruments.
- Electrical Equipment: Securing components in electrical panels and devices.
- Model Making: Used in model building projects.
- Hobbies and Crafts: Fastening in various hobby and craft projects.
Technical Specifications and Dimensions
Below is a standard size chart for DIN 88 slotted oval head screws. It’s crucial to consult the full DIN 88 standard document for the most accurate and up-to-date information, as these are typical values and variations can exist.
| Thread Size (M) | Head Diameter (d1) mm | Head Height (k) mm | Slot Width (n) mm | Slot Depth (t) mm |
|---|---|---|---|---|
| M1.6 | 3.0 | 1.1 | 0.6 | 0.4 |
| M2 | 3.8 | 1.3 | 0.8 | 0.5 |
| M2.5 | 4.5 | 1.7 | 1.0 | 0.6 |
| M3 | 5.5 | 2.1 | 1.2 | 0.7 |
| M4 | 7.0 | 2.9 | 1.6 | 0.9 |
| M5 | 8.5 | 3.6 | 2.0 | 1.2 |
| M6 | 10.0 | 4.2 | 2.5 | 1.4 |
| M8 | 13.0 | 5.7 | 3.0 | 1.8 |
| M10 | 16.0 | 7.2 | 3.5 | 2.2 |
| M12 | 18.0 | 8.4 | 4.0 | 2.5 |
| M16 | 24.0 | 11.4 | 5.0 | 3.2 |
| M20 | 30.0 | 14.4 | 6.0 | 4.0 |
Related Standards
For related information, consider these other fastener standards:
- DIN 85: Slotted Pan Head Screws – A similar slotted drive screw with a rounded pan head.
Conclusion
DIN 88 slotted oval head screws are reliable fasteners used in various applications. Their smooth, low-profile heads make them suitable for situations where an aesthetically pleasing appearance is important. Always consult the official DIN 88 standard document for precise specifications before use.
Important Notice on Standards Validity
This information is for reference purposes only. Always consult official sources and the latest versions of standards to ensure compliance with current regulations. Standards can be updated or withdrawn, so verification is essential. Check with recognized engineering and standardization organizations (ISO, DIN, ANSI, ASME, etc.) for the most current and applicable standards. Regulations and industry requirements can vary by region and application.