precision threading calculator
Thread Parameters
in
tpi
%
in
Thread Specifications
Basic Geometry
Pitch:
0.0769 in
Lead:
0.0769 in
Lead Angle:
2.34° (2° 20')
Thread Angle:
60.0°
Thread Depths
External (Bolt) Single / Double:
0.0472 / 0.0944 in
Internal (Nut) Single / Double:
0.0416 / 0.0833 in
Radial Infeed (Single depth):
0.0472 in
Tool Profile Flats
External Crest Width:
0.0096 in
External Root Width:
0.0192 in
Internal Crest Width:
0.0192 in
Internal Root Width:
0.0096 in
ASME B1.1 Tolerance Limits
| Diameter | Basic | External Max / Min | Internal Max / Min |
|---|---|---|---|
| Major | 0.5000 | 0.4985 / 0.4876 | 0.5000 / Min |
| Pitch | 0.4500 | 0.4485 / 0.4435 | 0.4500 / 0.4552 |
| Minor | 0.4001 | 0.3986 / Max | 0.4172 / 0.4340 |
3-Wire Measurement
Suggested Best Wire:
0.0444 in
Measurement Over Wires:
0.5168 in
Tapping & Die Preparation
Die Blank Outer Dia:
0.4923 in
Suggested Drill (Calculated):
0.4231 in
Standard Drills (8 Close):
Thread Depth Percentage:
75% thread
Hydraulic Fitting Reference Guide
Based on Parker Hannifin standards. Select a family and size to load specs directly into the calculator.
| Size (Dash) | Thread Standard | Seal Profile | Nominal Working Pressure | Action |
|---|
Bi-Directional Wire Math
Calculation Result
Calculated Measurement (M)
0.5168
inches
Formula used:
M = E + W * (1 + csc(alpha)) - (P / 2) * cot(alpha)