M3 Allen Button Head Socket Screws
M3 allen button head socket screws to ISO 7380-1 in property class 012.9 alloy steel. Low-profile rounded head with hex socket drive for minimal protrusion at 3mm diameter.
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
#
The 3mm button head socket screw provides a compact fastening solution for applications prioritising surface finish and clearance. The domed head distributes bearing load across a wider area than flat-head alternatives while maintaining a low profile. Internal hex drive eliminates the need for external wrench clearance, enabling installation in tight spaces. Alloy steel construction with black oxide finish provides adequate corrosion protection for indoor and enclosed assemblies. ISO 7380-1 standardisation ensures dimensional interchangeability across manufacturers.
Common Applications
#
Typical applications for 3mm button head socket screws:
- Machine guards and safety enclosures
- Conveyor system covers and access plates
- HVAC equipment panels and ductwork
- Decorative metalwork and architectural features
- Removable access panels and inspection 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 |
