Press fit clip for 5 mm brake line. This holder the line away from other part/edge to reduce the risk of rubbing and to hold it in place. It has a clip-in stud to attached to locating holes but I've only had mixed success with it staying in without shearing off - it is mostly effective to provide standoff rather than locating a line.

I printed on a Mini with PLA. A more flexible/tough filament would provide better performance, but it's been working for me for a few years.I might need to be scaled slightly to to provide a friction fit depending on the application.

This is based on the clip design from my '99 Jeep Wrangler. YMMV and use at your own risk.