The lowest price component in this Knuckle Arm parts-list fiche is the Pin 20x20.
This schematic depicts all components used in the Lt50 1990 (l) General Uk Sweden Brazil S-arab (e1 E2 E17 E37 E43 Knuckle Arm partslist.
With a quantity of four pieces, the Nut is the most used part in the KNUCKLE ARM diagram.