Design of Knuckle Joint:- 1. Failure of the solid rod in tension , 2. Failure of the knuckle pin in shear , 3. Failure of the single eye or rod end in tension , 4. Failure of the single eye or rod end in shearing, 5. Failure of the single eye or rod end in crushing , 6. Failure of the forked end in tension , 7. Failure of the forked end in shear , 8. Failure of the forked end in crushing ,