... 1 1 / 8" Z6, 1 3 / 4 "Z6, 1 3 / 8" Z20, 1 1 / 8 "Z20, 1 3 / 4" Z20, 1 3 / 8 "Z21 , 1 1 / 8 "Z21, 1 ... (540) on the Tractor End1-3/8" Smooth with 1/2" Shearpin Hole on the Cutter EndMinimum Working Length ... 49"Included is 3 Grade 2 Shear Bolts with NutsMedium Duty Rated up to 40 HP (If ... ) (FAS). 7 For any other more special requirements with plastic guard, connection method, color of painting, package, ...