The Bolt,knock,7x12 is the most widely applied product in the CB750K 750 FOUR K 1979 (Z) USA CAM CHAIN / TENSIONER ( four times ).
Parts such as the Cam Chain / Tensioner: Sprkt.set,ex.cam, Sprocket,in,cam, Nut, Blind, 6m/m, Bolt,hex 6x14 are included in the Cb750k 750 Four K 1979 (z) Usa Cam Chain / Tensioner parts fiche.
The Cam Chain / Tensioner assembly is constructed from several parts from which the Tensioner,a Chain is the most expensive.