This Cupscrew Set, M3*8 Ni (100 pcs) is suitable for Roland RS-540 printers. This is the original Roland part (number 31289108AS).
 
Printer compatibility
Roland BN-20
Roland FP-740
Roland LPX-60
Roland MPX-60
Roland MPX-90
Roland RS-540
Roland RS-640
Roland SC-545ex
Roland SJ-645ex
Roland SJ-745ex
Roland XR-640
Roland SP-540v
Roland FJ-540
Roland SJ-540
Roland SJ-640
Roland SJ-740
Roland GX-640
Roland GX-300
Roland GX-400
Roland GX-500