STIHL Hex Nut, Suitable for: Stihl BT 106, BT 308, BT 309, BT 360, BT 45 Augers, BR 320, BR 320 L, BR 400 Backpack Blowers, FR 106, FR 108, FR 125, FR 125 SEA, FR 130 T, FR 135, FR 135 SEA, FR 145, FR 145 SEA, FR 350, FR 450, FR 85, FR 85 T Backpack Brushcutters, FS 56, FS 60, FS 61, FS 62, FS 65, FS 66, FS 72, FS 74, FS 75, FS 76, FS 80, FS 81, FS 83, FS 85, FS 86, FS 88, FS 96 Brushcutters, FS 450, FS 200, FS 360, FS 400, FS 410, FS 420, FS 550 Clearing Saws, TS 08, TS 08 S, TS 760 Disc Cutters, KM 100/100R, KM 110 R, KM 130, KM 130 R-Z, KM 130R, KM 55 C-E, KM 55, KM 55 R Z, KM 55 RC-E DZ, KM 55 RC-E, KM 55 RC-E Z, KM 55 R-DZ, KM 55C, KM 55R C, KM 55R, KM 56 C-E, KM 56 RC-E, KM 56 RC-E Z, KM 85, KM 85 R, KM 85 R-Z, KM 85-Z, KM 90, KM 90 R, KM 90 R-Z, KM 94 RC-E Engines, SR 320, SR 340, SR 400, SR 420 Mistblowers, RE 520 W, RE 521, RE 550 W, RE 551 Plus, RE 580 W, RE 581, RE 581 Plus, RE 600 W, RE 630 W, RE 640 W, RE 660 W, RE 661, RE 661 Plus, RE 830 W, RE 840 W, RE 880 W, RE 961 Plus Hot Water Washers, RE 250 K, RE 260 K, RE 300 K, RE 330 K, RE 360 K PLUS, RE 361 PLUS, RE 361, RE 400 K, RE 461 PLUS, RE 461, RE 471 PLUS Pressure Washers, SE 100, SE 200, SE 201, SE 202 Vacuum Cleaners