Bulk items are nonsolid representations of components within an assembly. Bulk items represent objects that do not require solid models but must be represented in the Bill of Materials (BOM) or in Product Data Management programs. Examples of bulk items include glue, paint, or multiple component items such as rivets or screws. Bulk items are identified with
in the Model Tree. Bulk items can contain special relationships to support the associative calculation of bulk quantities according to the assembly context.