Which Metal Spring Clamps Best for Headliner Installation?

When the upholstery guy who did mine (66 barracuda) he used a variety of 1” clamps same as the clamps the original poster pictured. He would glue, let it stretch a few days and returned to stretch it again until it was good. He said his were just Harbor Freight versions.

As for pinch weld molding that’s a great idea for some of the areas. I’m wondering if the metal clamp inside would damage the headliner. Putting it on and removing it a few times to get it tight. I need to try that.