Replacement flail bolt (M16 x 80mm class 10.9 bolt with nylon lock nut) required for attaching either the Y-Blade or Hammer Blade to the FM-62/FM-62H or FM-78/FM-78H. Fits models prior to 2015.
FM-62/FM-62H requires 18 bolts total
FM-78/FM-78H requires 22 bolts total