These Musser Bar Mounting Screws fit into holes in your M645 Orchestral Bell bars, holding the bars in place at all times.
These screws do not include the rubber bushings that prevent unwanted metal-on-metal contact - you'll need those as well if you don't have them.
Fully-functioning M645 Orchestral Bells require 30 mounting screws, so if you're completely refurbishing the instrument you'll need three packs.
