even though you slag me off a few times, i offer the best solution for your problem, i have more pressing issues than be bitter on this argumentative forum (even if the person who gives out suggestions, intended to assist the op to the best of his intentions)
use larger heat shrink cable tubing/sleeve ( cut the one end), apply then use hair dryer to apply, it will shrink to the metal frame with a nice professional rubberised finish and more importantly, tight fitting to the problem, rather than a nasty loss shiny plastic trim which will fall off anyway.
other issues, this plastic trim, if it fall off from your presumably custom pc project, will melt on the hot graphics card which render it broken, while heat shrink tubing is designed for electronics ( so it only shrink once) and does not melt easy or even burn that easy, so safer for use on pc or electronics ( used to terminate my speaker cables with banana plugs to prevent oxidation or custom modified rgb video games cables etc)