With a quantity of four pieces, the Bolt-washer,8x20 is the most used part in the STAND / STEP diagram.
Some items from this specific schematic: Bar Comp.,step, Pin,cotter 1.6x15, Arm Comp.,l.step, Washer,plain,8mm.
This Bar Comp.,step is the most expensive of the items that make up this Stand / Step assembly.