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In the tree view, click Piping > Piping Specification > Piping Materials Classes.
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In the Piping Materials Classes branch, open a specification and click Piping Materials Class Rules > Preferred Stud Bolt Length Rule.
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Click Insert Row to insert a blank row in the grid view.
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In the Bolt Diameter From column, specify the beginning bolt diameter for the range of bolt diameters that are to use the preferred bolt length.
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In the Bolt Diameter To column, specify the ending bolt diameter for the range of bolt diameters that are to use the preferred bolt length.
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In the Bolt Diameter Increment column, type the value by which to increment the bolt diameter.
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In the Materials Grade column, type the material grade code for the bolt.
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Define the preferred bolt length information in the remaining columns.
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Valid material grade codes are listed in the Materials Grade select list.
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The Preferred Stud Bolt Length sheet in the workbook corresponds to the Preferred Stud Bolt Length Rule node. See Piping Reference Data.