Install Handles Install bolts and washers securing handles and shafts to seat frame using a 17mm socket wrench. Item Description Qty. 1 Seat Frame 1 2 Handle 2 3 Shaft 2 4 3/8" Flat Washer 4 5 M10 x 30mm Bolt 4 Tighten bolts to 20-25 ft-lb (27-33 Nm). Parent topic: Assembly Procedure