Allen Button Head Socket Screws
Low-profile domed-head fasteners with internal hex drive per ISO 7380-1. Designed for reduced head height and snag-free surfaces in steel and stainless steel. Zero-prefixed property classes (08.8, 010.9, 012.9) indicate 80% head load capacity.
Specification
#
Standard
ISO 7380-1 (EN ISO 7380-1)
Material
Alloy Steel
Thread
Coarse (standard)
Grade
12.9
Coating
Black oxide
Head Type
Button (domed) with hexagon socket
Drive Type
Hexagon socket (Allen key/hex wrench)
Stock
In stock
Dimension
#
Size (d mm)
Thread Dia (min-max mm)
Pitch
Length (mm)
Thread Length (mm)
M3
2.87-3.00
0.5
6-30
18
M5
4.85-5.00
0.8
8-50
22
M6
5.85-6.00
1.0
10-60
24
M8
7.83-8.00
1.25
12-80
28
M10
9.82-10.00
1.5
16-100
32
- All dimensions in mm, tolerance +/- 0.01 mm. Additional dimensions available on request.
Benefits
#
Button head socket screws address the engineering need for fasteners that minimise protrusion while maintaining hex socket drive capability. The domed head geometry reduces head height significantly compared to cylindrical socket head cap screws, making them suitable for height-restricted assemblies and exposed surfaces where snagging poses a safety or functional risk.
The smooth, rounded profile eliminates catch points on cables, clothing, and moving parts — a critical requirement in electronic enclosures, medical devices, and consumer products. The zero-prefixed property class marking (08.8, 010.9, 012.9) clearly communicates the 80% head load capacity, preventing inadvertent substitution for full-strength fasteners in structural joints. ISO 7380-2 variants with collar provide increased bearing surface without a separate washer.
Common Applications
#
Button head socket screws are specified where low head profile, smooth finish, and reduced snagging risk are primary design requirements.
- Electronic enclosures and instrument panels
- Furniture and cabinetry hardware
- Automotive interior trim and panels
- Medical device enclosures
- Light-duty machinery covers and guards
- Signage and display fixtures
- Appliance assemblies
- Decorative metalwork and architectural features
- Access panels and removable covers
Read Me
| Standard | ISO 7380-1 (EN ISO 7380-1) |
| Material | Alloy Steel |
| Thread | Coarse (standard) |
| Grade | 12.9 |
| Coating | Black oxide |
| Head Type | Button (domed) with hexagon socket |
| Drive Type | Hexagon socket (Allen key/hex wrench) |
| Stock | In stock |
| Size (d mm) | Thread Dia (min-max mm) | Pitch | Length (mm) | Thread Length (mm) |
|---|---|---|---|---|
| M3 | 2.87-3.00 | 0.5 | 6-30 | 18 |
| M5 | 4.85-5.00 | 0.8 | 8-50 | 22 |
| M6 | 5.85-6.00 | 1.0 | 10-60 | 24 |
| M8 | 7.83-8.00 | 1.25 | 12-80 | 28 |
| M10 | 9.82-10.00 | 1.5 | 16-100 | 32 |
