Now you add a standard hex bolt from the SolidWorks Toolbox library.
Open the Design
Library
.
Expand Toolbox, ISO. Bolts and Screws, Hex Bolts and Screws.
The lower pane of the Design Library
displays thumbnail previews of the available hardware types.
Drag a Hex Screw Grade AB ISO 4014 to the graphics area of the assembly, but do not drop it yet.
Notice a preview of the bolt appears in the graphics area.

Drop the bolt into one of the holes when the preview changes to the following:

The Hex Screw Grade AB ISO 4014 dialog box appears. The title of the dialog matches the selected component. You set the parameters of the selected component in this dialog box.