M5 Allen Grub Screw
M5 cup point grub screws to ISO 4029 with hexagon socket drive in hardness class 45H steel. Controlled shaft indentation for positive mechanical locking at 5mm diameter.
Specification
#
Standard
DIN 916 / ISO 4029 (EN ISO 4029)
Material
Alloy Steel
Thread
Coarse (standard)
Grade
12.9
Coating
Black oxide
Head Type
Headless (no head)
Drive Type
Hexagon socket (Allen key/hex wrench)
Point Type
Cup point (concave depression)
Dimension
#
Size
Thread Dia (d)
Pitch
Length(L)
Thread Length (b)
M3
2.87-3.00
0.5
3mm - 20mm
Full
M4
3.85-4.00
0.7
4mm - 30mm
Full
M5
4.85-5.00
0.8
4mm - 40mm
Full
M6
5.85-6.00
1.0
5mm - 50mm
Full
M8
7.83-8.00
1.25
6mm - 50mm
Full
- All dimensions in mm, tolerance +/- 0.01 mm. Additional dimensions available on request.
Benefits
#
At 5mm, cup point grub screws deliver reliable component fixation on shafts and within bores. The headless form factor allows complete installation below the surface, critical where external fastener heads would create interference. The cup point indents the shaft material, creating a mechanical lock that resists both rotational and axial movement under vibration. Hardness class 45H provides sufficient surface hardness for effective indentation on carbon steel and alloy shafts. Black oxide finish is standard for indoor and lubricated applications.
Common Applications
#
Typical applications for 5mm grub screws:
- Machine tool fixture locking
- Industrial valve handle attachment
- Conveyor roller and idler fixation
- Heavy-duty coupling assembly
- Bearing locknut securing
Read Me
| Standard | DIN 916 / ISO 4029 (EN ISO 4029) |
| Material | Alloy Steel |
| Thread | Coarse (standard) |
| Grade | 12.9 |
| Coating | Black oxide |
| Head Type | Headless (no head) |
| Drive Type | Hexagon socket (Allen key/hex wrench) |
| Point Type | Cup point (concave depression) |
| Size | Thread Dia (d) | Pitch | Length(L) | Thread Length (b) |
|---|---|---|---|---|
| M3 | 2.87-3.00 | 0.5 | 3mm - 20mm | Full |
| M4 | 3.85-4.00 | 0.7 | 4mm - 30mm | Full |
| M5 | 4.85-5.00 | 0.8 | 4mm - 40mm | Full |
| M6 | 5.85-6.00 | 1.0 | 5mm - 50mm | Full |
| M8 | 7.83-8.00 | 1.25 | 6mm - 50mm | Full |
