Specs: Description: Bar Nut, 8mm x 1.25 THD, Package of 2, Priced per pack, sold per pack. Replaces OEM Numbers: Echo: 43301912330, V265000200, GB: BN4, Husqvarna: 503220001, McCulloch: 231169, Partner: 503220001, Stihl: 9220 260 1100. Compatible With/Replacement For: McCulloch: 600, 605, 610 and 650, Partner: P55, P70, P100, R16, 550 and 55, Stihl: 015, 020, 041, 045, 056, BT120, BT121, E10, E15, FR350, FR3900, FR450, FR480, FS120-FS480, FT250, HT250, MS150, SP200, SP400, SP450, SP451, SP481, TS350, TS400, TS410, TS420, TS460, TS480i, TS500i, TS510 and TS760 chainsaws. Stens 1 year warranty ensures reliability and performance for every part. Stens branded parts are trusted by professional dealers to perform OEM quality repairs.