Forester Chain Saw Wrench (Scrench) 13mm by 19mm Plus 6 Flanged Bar Nuts Replaces Husqvarna 7 Piece Bundle 7 Piece Bundle Including 1 Orange Chain Saw Scrench and 6 Flanged Bar Nuts Replaces Husqvarna Orange Combination Screw Driver And Wrench (Scrench) 13mm by 19mm Quality Aftermarket Replacement Flanged Bar Nuts Fits Husqvarna, Jonsred, Partner and others 8 mm x 1.25 thread 13 mm hex nut size Bar Nuts Replaces OEM 503220001 and more