Quality aftermarket Spline Screw IS-M5x40 For: Stihl 042AV, 048, 050, 051, 064, 066, 076, FH, FH-KM, FH75, FS160, FS180, FS220, FS220K, FS280, FS280K, FS290, HL, HL-KM, HL73, HL73K, HL75, HL75K, MS640, MS650, MS660, TS510, TS510, TS760, TS760 Replaces OEM part(s) #: 9022-341-1090