These sets will replace the various large thumbscrews that may be missing from your Yamaha CS synthesizer. These are not originals or replicas, but rather suitable equivalent replacements.
CS-50 – One thumbscrew that attaches leg braces to chassis (1 total)
CS-60 – One to attach leg braces to the center of console, four that attach the legs to the chassis, and two to attach the braces to the legs (8 total)
CS-80 – One to attach stand pieces together, 4 that attach synthesizer to stand (5 total)