I wanted an easy way to route and retain cables behind an existing offset mount multiboard.

File works with a 15 mm offset board, and mounts using a 13 mm small thread shank bolt, like this one .

Use: The part loads into a placement tool to allow easy positioning. After positioning the part, advance the bolt until flush with the base of the cable holder, remove the positioning tool, slide the cable into place, then finish tightening.