The lowest price component in this Cam Chain / Tensioner parts-list fiche is the Screw,cross,6x10.
Some items from this specific schematic: Plate B.tensioner, Washer,8mm, Roller,cam Chain, Tensioner,chain.
The Screw,cross,6x10 is the most widely applied product in the S90 SUPER 1964 USA CAM CHAIN / TENSIONER ( three times ).