Tutorial - Modeling Tee-Head bolt in SolidWorks?

Here is the Tutorial.
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Step 1:
Start SolidWorks in Part mode.
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Step 2:
Top plane>>Sketch.
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Step 3:
Draw a center rectangle of 10mm and 17.5mm dimension.
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Step 4:
Extrude it by 7.5mm.
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Step 5:
Top face>>Sketch.
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Step 6:
Draw another square.
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Step 7:
Extrude it by 7.5mm.
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Step 8:
Top face>>Sketch.
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Step 9:
Draw a circle tangent to the sides of the box.
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Step 10:
Extrude it by 50mm.
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Step 11:
Now we have the bolt body.
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Step 12:
After making threads.