ISO 4762 Socket Head Cap Screw
Cylindrical head socket screw with internal hex drive, designed for high-strength joints in machinery, molds, fixtures, industrial machining and assemblies where tightening precision is required.
A socket screw for high-demand assemblies
The ISO 4762 screw is a cylindrical head socket screw with internal hex drive. Its geometry allows tightening torque to be applied with precision, maintaining a strong and repeatable fastening in industrial applications.
It is also commonly known as DIN 912, a designation widely used in drawings, technical catalogues, industrial warehouses and purchasing documentation. It is a key reference in machining, molds, automation and fixtures.
Cylindrical head
Provides a stable bearing surface and robust geometry for technical assemblies.
Internal hex
Allows torque to be applied with an Allen key in reduced-access areas.
High capacity
Suitable for applications requiring mechanical strength and controlled tightening.
Industrial use
Widely used in machinery, molds, fixtures, CNC equipment and compact assemblies.
Main characteristics of ISO 4762
The ISO 4762 standard defines a cylindrical head socket fastener designed for mechanical assemblies where tightening, strength and repeatability are critical factors.
Technical sheet and ISO 4762 geometry
Reference technical image for identifying the geometry of the ISO 4762 screw, its cylindrical head, internal hex drive, metric thread and main dimensions.
Common ISO 4762 dimensions
| Metric size | Pitch | Head height K | Head diameter DK | Common use |
|---|---|---|---|---|
| M3 | 0.5 | 3 mm | 5.5 mm | Small components |
| M4 | 0.7 | 4 mm | 7 mm | Housings and light fastenings |
| M5 | 0.8 | 5 mm | 8.5 mm | Fixtures and supports |
| M6 | 1.0 | 6 mm | 10 mm | Industrial assemblies |
| M8 | 1.25 | 8 mm | 13 mm | Machinery and molds |
| M10 | 1.5 | 10 mm | 16 mm | Mechanical assemblies |
| M12 | 1.75 | 12 mm | 18 mm | Robust applications |
This table is indicative. For manufacturing, supply or dimensional verification, the complete ISO 4762 standard dimensions and the specific requirements of the customer drawing should be consulted.
Materials, strength classes and finishes
Common materials
- Carbon steel 8.8 · general industrial use
- Carbon steel 10.9 · higher mechanical strength
- Steel 12.9 · high-demand applications
- A2 / A4 stainless steel · corrosive or humid environments
Technical finishes
- Black oxide · common finish for socket screws
- Zinc plated · standard surface protection
- Natural stainless · corrosion resistance
- Special coatings · according to drawing or technical requirement
Material selection should consider load, tightening torque, temperature, corrosion, fatigue, working environment and documentation traceability requirements.
Common industrial applications
ISO 4762 compared with other socket screws
Each socket screw responds to a different design requirement. ISO 4762 stands out for its tightening capacity and technical use in robust assemblies.
Cylindrical head
- Higher tightening capacity
- General technical use
- Good mechanical strength
- Ideal for molds, fixtures and machinery
Button head
- Lower and more rounded profile
- Better visual integration
- No countersinking required
- Lower capacity than cylindrical head
Countersunk head
- Sits flush with the surface
- Requires a countersunk seat
- Avoids external protrusions
- Ideal for clean surfaces
Strength, precision and repeatability in assembly
Higher tightening torque
Allows robust fastening in applications with high mechanical demand.
Allen key access
Makes assembly easier in housings where there is no room for an external wrench.
Standardized use
Helps maintain compatibility, repeatability and control in technical purchasing.
Industrial versatility
Adapts to machinery, molds, fixtures and machined components.
Standardized screws and machined parts according to drawing
At AREM-CNC, we manufacture and supply components according to DIN, ASTM, ISO standards or customer drawings, with certified materials, dimensional control and complete traceability for demanding industrial applications.