Examples
Examples
Try the starting example
- Metric thread major diameter (mm)
- 8
- Thread pitch (mm)
- 1.25
- Available drill diameters (mm)
- 6,6.5,6.8,7,7.5
- Approximate tap drill target (mm)
- 6.75
- Nearest listed supplier drill (mm)
- 6.8
- Nominal 60° thread engagement (%)
- 73.900834
Try another scenario
- Metric thread major diameter (mm)
- 8.8
- Thread pitch (mm)
- 1.25
- Available drill diameters (mm)
- 6,6.5,6.8,7,7.5
- Approximate tap drill target (mm)
- 7.55
- Nearest listed supplier drill (mm)
- 7.5
- Nominal 60° thread engagement (%)
- 80.059237
Calculation method
Calculation method
Approximate tap drill target (mm)
Target D-p; nearest supplier drill; nominal geometric thread engagement=100(D-drill)/(1.299038105676658 pitch).
Nearest listed supplier drill (mm)
Target D-p; nearest supplier drill; nominal geometric thread engagement=100(D-drill)/(1.299038105676658 pitch).
Nominal 60° thread engagement (%)
Target D-p; nearest supplier drill; nominal geometric thread engagement=100(D-drill)/(1.299038105676658 pitch).
Symbols and units
- a
- Metric thread major diameter (mm)
- b
- Thread pitch (mm)
- c
- Available drill diameters (mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Approximate 60° metric cut-thread geometric engagement, not actual load-carrying engagement. No forming taps or strength certification. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Approximate 60° metric cut-thread geometric engagement, not actual load-carrying engagement. No forming taps or strength certification.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.