With a quantity of eight pieces, the Screw,tapping,4x10 is the most used part in the HANDLE PIPE/TOP BRIDGE diagram.
Some items from this specific schematic: Screw,tap.,4x12, Cover,hnd*nh-158*, Holder,handle Und, Bolt,flange,8x35.
The lowest price component in this Handle Pipe/top Bridge parts-list fiche is the Screw,flat,4x12.