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OUTPUT · STEP (AP214)
PARAMETRIC · 3D · STEP

Hex Nut (UNC / Inch) Generator

Select a UNC designation (e.g., 1/4-20) to generate a STEP file for a hexagon nut with Unified National Coarse (UNC) inch threads.

Standard ASME B1.1 / ASME B18.2.2 Table 4 hex nut Shape Regular Hexagon Nut Supported Sizes 1/4-20 to 1-8 UNC (10 variants)
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HOW-TO How to Generate a Hex Nut (UNC / Inch Thread) STEP File +
  1. Select the UNC designation
  2. Calculated values update in real time as parameters change
  3. Click "Download STEP File" or "Preview STEP Model"
  4. If you selected "Download STEP File", the STEP file will be saved automatically
  5. If you selected "Preview STEP Model", check the 3D model, then click "Download STEP File" manually
SAMPLE
STATIC · DEFAULT-VALUE MODEL
● SAMPLE IMAGE
VIEW · ISO
1/4-20 UNC · m=5.56 mm
HEXAGON NUT UNC
DEFAULT PARAMETERS
Hex Nut (UNC / Inch) Generator SAMPLE · 1/4-20 UNC · m 5.56 mm
This is a sample image. After generating, view the actual model in 3D preview. 3D Preview →
CALCULATED · SPEC
AUTO-COMPUTED
P
1.27mm
Pitch
m
5.56mm
Nut Height
s
11.11mm
Width Across Flats
e
12.83mm
Hex Circumscribed Diameter
Tags
Screw Utility
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PARAMETERS
Enter Dimensions
2 REQUIRED

Uses ASME B1.1 UNC (Unified National Coarse) standard values

Model Detail

Checked: With threads

CAUTION

Bolts and nuts generated by this tool use custom clearance settings. For sizes 7/16-14 and 9/16-12, the ASME B18.2.2 hex nut uses a different wrench size than the same-diameter UNC hex head cap screw (standard-defined difference).

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ABOUT · STEP

The STEP file (.step / .stp) is a standard 3D CAD format that retains dimensional and topology data. Compatible with major CAD software including Fusion 360, SolidWorks, and FreeCAD.

  • Full-scale solid (mm units)
  • Editable dimensions and post-processing in CAD
  • Convertible with a slicer for 3D printing

Generating 3D model...