Relation Files
The files param_relations*.txt are located in the folder FOLDER_FOR_FASTENER_DATA in the directory which you specify with the Creo Intelligent Fastener configuration option PATH_ABS_LIBRARY.
The text in the relation file is added as a relation to new fastener parts.
Add wildcards to the name to use different relation files. You can use the following wildcards:
catalog —Name of your catalog such as mm or inch.
type —Fastener type. See values for type in the list that follows:
screws
nuts
washers
inserts
pins
* 
The catalog must be the first wildcard.
Search Priority
The search priority is as follows:
1. param_relations_<catalog>_<type>.txt
2. param_relations_<catalog>.txt
3. param_relations_<type>.txt
4. param_relations.txt
Example with screws from the mm catalog.
param_relations_mm_screws.txt
Example with nuts from all catalogs.
param_relations_nuts.txt
Example with all fastener types from the inch catalog.
param_relations_inch.txt