Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 320Get this manual
DF6070 "K5" ('05) MODEL
TRANSOM BOLT
The transom bolt and related parts have been changed as shown below: The transom bolt has been changed in thread pitch from 1.75 mm to 1.25 mmThe lock washer has been eliminatedThe plane washer (O.D22 mm) has been changed in thickness from 2.5 mm to 3.0 mmThe nut has been changed to lock nut