DIN 914 Set Screw (Cone Point) Specifications
DIN 914 Set Screws – Cone Point
ISO Equivalent: ISO 4027 | Hex Socket Cone Point Grub Screws
DIN 914 defines hex socket set screws with a cone point — providing maximum holding power by biting into the mating surface. The sharp 120° point creates a witness mark and is ideal when components must not slip under load.
Quick Specifications
Key Features
120° Cone Point
Sharp point bites into the mating surface, creating maximum grip and a witness mark for repositioning.
Maximum Holding Power
Highest resistance to rotational and axial slip of all set screw point types. Critical for high-torque applications.
Self-Centering
Point naturally centers in drilled countersinks or machined witness marks for precise repositioning.
Permanent Applications
Leaves a mark on the shaft — best for permanent installations or where repositioning to same location is required.
Dimension Chart
| Size | Pitch (Coarse) | Point Angle | Hex Key Size | Lengths Available |
|---|---|---|---|---|
| M3 | 0.5 mm | 120° | 1.5 mm | 3–20 mm |
| M4 | 0.7 mm | 120° | 2 mm | 4–30 mm |
| M5 | 0.8 mm | 120° | 2.5 mm | 4–40 mm |
| M6 | 1.0 mm | 120° | 3 mm | 5–50 mm |
| M8 | 1.25 mm | 120° | 4 mm | 6–60 mm |
| M10 | 1.5 mm | 120° | 5 mm | 8–80 mm |
| M12 | 1.75 mm | 120° | 6 mm | 10–100 mm |
| M16 | 2.0 mm | 120° | 8 mm | 16–120 mm |
| M20 | 2.5 mm | 120° | 10 mm | 20–150 mm |
| M24 | 3.0 mm | 120° | 12 mm | 25–200 mm |
Property Classes
When to Use Cone Point (DIN 914)
✓ Best Applications
- Maximum holding power required — highest grip of all point types
- Permanent installations where slip is unacceptable
- High-torque drives like motor shafts and spindles
- Repositioning required — point creates witness mark to return to same position
- Mating with countersink in shaft for positive engagement
⚠️ Consider Alternatives When
- Surface marking unacceptable → Use DIN 913 (Flat Point)
- Precise positioning in hole → Use DIN 915 (Dog Point)
- General purpose clamping → Use DIN 916 (Cup Point)
Common Applications
DIN 914 vs ISO 4027
💡 Are They Interchangeable?
Yes — DIN 914 and ISO 4027 are dimensionally identical and fully interchangeable. Both standards define hex socket set screws with a 120° cone point. ISO 4027 is the international standard that supersedes DIN 914, but specifications remain the same.
Shop DIN 914 Cone Point Set Screws
Maximum holding power. Available in alloy steel (Class 45H, 14.9) and stainless steel. Sizes M3 through M24.
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