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Countersink Depth Calculator — result sheet
Calculate a conical countersink depth from screw-head diameter, body diameter, and included angle.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: depth=((head diameter−body diameter)/2)/tan(included angle/2).
A conical countersink is modeled as a symmetric cross-section. Tool geometry, pilot-hole depth, clearance, material behavior, and manufacturer tolerances are outside the result.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Head diameter — minimum 1.0E-6; maximum 10000
- Body diameter — minimum 1.0E-6; maximum 10000
- Included countersink angle (°) — minimum 1; maximum 179
Worked example
| Input | Value |
|---|---|
| Head diameter | 10 |
| Body diameter | 4 |
| Included countersink angle (°) | 90 |
Countersink depth=3 length units.
Assumptions and limits
- Head diameter is greater than body diameter.
- The included angle is measured across the full cone.
- All diameters use one consistent unit and the cone is centered on the screw axis.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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