Tutorial - Modeling wing nut in SolidWorks?

Here is the tutorial.
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Step 1:
Top plane>>Sketch.
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Step 2:
Draw a circle of 20mm dia.
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Step 3:
Exit the sketch. Now go to reference geometry >> plane.
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Step 4:
Offset Top plane by 10mm.
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Step 5:
Plane1>>sketch.
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Step 6:
Draw another circle of 15mm dia.
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Step 7:
Exit the sketch. Click Lofted boss/base.
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Step 8:
Select both circles and adjust the connectors.
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Step 9:
Top face>>Sketch.
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Step 10:
Draw a circle of 10mm dia.
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Step 11:
Extrude cut it by through all.
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Step 12:
Chamfer.
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Step 13:
Chamfer both internal edges by .5mm and 45º.
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Step 14:
Front plane>>Sketch.
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Step 15:
Draw this profile.
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Step 16:
Extrude it by 2mm in mid-plane.
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Step 17:
Fillet.
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Step 18:
Select both edges at 1mm radius.
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Step 19:
Mirror.
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Step 20:
About right plane mirror the boss-extrude2 and fillet feature.
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Step 21:
We have the part body.