In this schematic the "Bolt Hex 10mm" is used most often.
Parts such as the At Differential Gear: Ring, Set 80mm 2, Roller 5x10, Diff Comp, Bolt Hex 10mm are included in the Civic 2001 (1) 4dr Dx A/c (ka) At Differential Gear parts fiche.
The At Differential Gear assembly is constructed from several parts from which the Diff Comp is the most expensive.