Button Head ISO 7380 Socket Screw
Button head socket screw with low profile, rounded geometry and internal hex drive. A technical fastening solution for housings, compact machinery, visible parts and assemblies where space or visual finish matters.
A compact fastening solution for visible assemblies
The ISO 7380 screw is a button head socket screw designed for joints where reliable fastening, reduced external height and a cleaner visual integration are required compared with a standard cylindrical head screw.
Its rounded, low-profile head helps reduce sharp edges, impacts, snagging and interference with other components. This makes it common in housings, covers, lightweight structures, compact equipment and visible parts.
Button head
Low and rounded shape designed to improve the visual integration of the assembly.
Low profile
Protrudes less than a cylindrical head, reducing external interference.
Internal hex
Allows tightening with an Allen key in areas with limited access.
Technical finish
Suitable for parts where the screw remains visible in the final assembly.
Main characteristics of ISO 7380
The ISO 7380 standard defines a button head socket screw designed for assemblies where functionality, access, appearance and space limitation need to work together.
Technical geometry and standardized dimensions
ISO 7380 dimensions make it possible to identify thread diameter, head height, bearing diameter, length and internal hex size. These references help select the correct screw for purchasing, design or manufacturing.
Common materials, grades and finishes
Technical materials
- Carbon steel 8.8 · general industrial use
- Carbon steel 10.9 · higher mechanical strength
- A2 stainless steel · indoor or moderate humidity environments
- A4 stainless steel · outdoor or corrosive environments
Finishes and treatments
- Zinc plated · standard surface protection
- Black oxide · dark technical finish
- Natural stainless · corrosion resistance
- Special coatings · according to technical requirement
The correct selection depends on load, working environment, corrosion, available height, tightening torque and the project’s documentation requirements.
Common ISO 7380 dimensions
| Metric size | Head type | Drive | Common use |
|---|---|---|---|
| M3 | Button head | Socket | Small components |
| M4 | Button head | Socket | Housings and covers |
| M5 | Button head | Socket | Fixtures and supports |
| M6 | Button head | Socket | Industrial assemblies |
| M8 | Button head | Socket | Compact machinery |
| M10 | Button head | Socket | Lightweight structures |
| M12 | Button head | Socket | Robust applications |
Indicative table. For manufacturing, supply or dimensional verification, the complete ISO 7380 standard dimensions and the specific drawing or project requirements should be consulted.
Common industrial applications
ISO 7380 compared with other socket screws
The correct choice depends on the available space, visual finish, tightening torque and whether the part allows a countersunk seat to be machined.
Button head
- Low and rounded profile
- Good visual finish
- No countersinking required
- Ideal for visible parts
Cylindrical head
- Higher external height
- Higher tightening capacity
- General use in machinery
- Less discreet on visible parts
Countersunk head
- Sits flush with the surface
- Requires countersink machining
- Flat finish
- More constrained assembly
A technical fastener when design also matters
Lower external height
Helps reduce interference with moving parts, covers or panels.
Clean finish
Its rounded shape integrates better into visible elements.
No countersinking required
Allows direct assembly without machining a conical seat.
Socket drive assembly
Makes tightening easier in areas where an external wrench cannot access.
Standardized screws and machined parts for industry
At AREM-CNC, we work with standardized components and machined parts according to drawing or technical standard, with certified materials, dimensional control and complete traceability.