M6×1.0 Thread Specifications
Complete dimensions for M6×1.0 coarse pitch thread per ISO 724. Pitch: 1.0mm (25.4 TPI equivalent).
Thread Dimensions
| Designation | M6×1.0 |
| Thread Series | ISO Metric Coarse |
| Pitch | 1.0 mm (25.4 TPI) |
| Major Diameter (d) | 6 mm (0.2362") |
| Pitch Diameter (d₂) | 5.3505 mm (0.2106") |
| Minor Diameter — External (d₁) | 4.7731 mm (0.1879") |
| Minor Diameter — Internal (D₁) | 4.9175 mm (0.1936") |
| Thread Depth | 0.5413 mm |
| Tensile Stress Area | 19.55 mm² |
| Fundamental Triangle Height (H) | 0.866 mm |
Tap Drill Size
Recommended tap drill: 5.0 mm
Calculated minor diameter (D₁): 4.92 mm. Closest standard metric drill: 5.0 mm.
Closest inch drill: #10 (0.1935" / 4.91 mm)
Proof Loads by Property Class
| Class | Proof Stress (MPa) | Tensile Strength (MPa) | Proof Load (kN) | Tensile Load (kN) |
|---|---|---|---|---|
| 4.6 | 225 | 400 | 4.4 | 7.8 |
| 4.8 | 310 | 420 | 6.1 | 8.2 |
| 5.8 | 380 | 520 | 7.4 | 10.2 |
| 8.8 | 580 | 800 | 11.3 | 15.6 |
| 9.8 | 650 | 900 | 12.7 | 17.6 |
| 10.9 | 830 | 1040 | 16.2 | 20.3 |
| 12.9 | 970 | 1220 | 19.0 | 23.9 |
Proof load = stress area × proof stress. Per ISO 898-1.
Related Thread Sizes
Common Applications
- Machine screws
- Electronics enclosures
- Light fixtures
- Automotive trim
How M6×1.0 Dimensions Are Calculated
All dimensions on this page are calculated from ISO 724 formulas using the nominal diameter (6 mm) and pitch (1.0 mm):
- Fundamental triangle height: H = (√3/2) × P = 0.866 mm
- Pitch diameter: d₂ = d − 0.6495 × P = 5.3505 mm
- Minor diameter (external): d₁ = d − 1.2269 × P = 4.7731 mm
- Minor diameter (internal): D₁ = d − 1.0825 × P = 4.9175 mm
- Thread depth: 5H/8 = 0.5413 mm
- Tensile stress area: Aₛ = (π/4) × ((d₂ + d₃)/2)² = 19.55 mm²