Free STEP Models

STEP solid models, which open in SolidWorks, Fusion, Inventor, FreeCAD and every other CAD system. Every file here is public domain: open it in your browser, then download it or export it to another format.

3570 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

All 715 Mechanical 234 Fasteners & hardware 184 Lighting 115 Architecture & BIM 76 Electronics & PCB 57 Tools & jigs 57 Furniture & interiors 22 Vehicles 11

715 3D parts as STEP · Clear all

stepM6Rotate in 3D
Flat washer M6
Flat washer M6, modeled from published dimensions. Overall 12 x 12 x 1.6 mm. Key dimensions: for thread 6 mm; bore diameter 6.4 mm; outside diameter 12 mm; thickness 1.6 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM5Rotate in 3D
Flat washer M5
Flat washer M5, modeled from published dimensions. Overall 10 x 10 x 1 mm. Key dimensions: for thread 5 mm; bore diameter 5.3 mm; outside diameter 10 mm; thickness 1 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM4Rotate in 3D
Flat washer M4
Flat washer M4, modeled from published dimensions. Overall 9 x 9 x 0.8 mm. Key dimensions: for thread 4 mm; bore diameter 4.3 mm; outside diameter 9 mm; thickness 0.8 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM3Rotate in 3D
Flat washer M3
Flat washer M3, modeled from published dimensions. Overall 7 x 7 x 0.5 mm. Key dimensions: for thread 3 mm; bore diameter 3.2 mm; outside diameter 7 mm; thickness 0.5 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM20Rotate in 3D
Flat washer M20
Flat washer M20, modeled from published dimensions. Overall 37 x 37 x 3 mm. Key dimensions: for thread 20 mm; bore diameter 21 mm; outside diameter 37 mm; thickness 3 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM16Rotate in 3D
Flat washer M16
Flat washer M16, modeled from published dimensions. Overall 30 x 30 x 3 mm. Key dimensions: for thread 16 mm; bore diameter 17 mm; outside diameter 30 mm; thickness 3 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM12Rotate in 3D
Flat washer M12
Flat washer M12, modeled from published dimensions. Overall 24 x 24 x 2.5 mm. Key dimensions: for thread 12 mm; bore diameter 13 mm; outside diameter 24 mm; thickness 2.5 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepM10Rotate in 3D
Flat washer M10
Flat washer M10, modeled from published dimensions. Overall 20 x 20 x 2 mm. Key dimensions: for thread 10 mm; bore diameter 10.5 mm; outside diameter 20 mm; thickness 2 mm. DIN 125 A nominal washer dimensions; straight edges, with no type-B chamfer. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.
11 KBDetails & download
stepRotate in 3D
Machined test part NIST FTC-11 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 11), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
7 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST FTC-10 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 10), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
316 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST FTC-09 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 9), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
258 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST FTC-08 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 8), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
440 KB · by NISTDetails & download
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Machined test part NIST FTC-07 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 7), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
393 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST FTC-06 (STEP)
A realistic machined part from NIST's PMI CAD test models (Fully-Toleranced Test Case 6), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
218 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST CTC-05 (STEP)
A realistic machined part from NIST's PMI CAD test models (Combined Test Case 5), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
319 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST CTC-04 (STEP)
A realistic machined part from NIST's PMI CAD test models (Combined Test Case 4), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
774 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST CTC-03 (STEP)
A realistic machined part from NIST's PMI CAD test models (Combined Test Case 3), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
246 KB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST CTC-02 (STEP)
A realistic machined part from NIST's PMI CAD test models (Combined Test Case 2), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
1.1 MB · by NISTDetails & download
stepRotate in 3D
Machined test part NIST CTC-01 (STEP)
A realistic machined part from NIST's PMI CAD test models (Combined Test Case 1), designed to exercise geometric dimensioning and tolerancing in CAD software. STEP AP203 solid geometry: open it in the viewer to rotate, measure and section it, or use it as a reference part for CAD, CAM and inspection workflows. The matching dimensioned drawing is in the Drawing Library.
230 KB · by NISTDetails & download

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