HatchKit

If you cannot find the hatch pattern you need, HatchKit can help you create it.
HatchKit 4 Trial Edition
Trial Edition allows evaluation of licensed HatchKit 4 functionality but will watermark all created patterns.
HatchKit V3 Add-In for Revit® 2013-2020
The HatchKit Add-In for Revit® directly accesses HatchKit Version 3 from your Revit® (2013-2020) toolbar:HatchKit 4 includes Fill Manager for Revit® 2016 to 2022.