On this parts fiche the Nut,flange,6mm is the most specified component.
twenty-nine components are listed in the schematic for this Civic 1999 (x) 4dr Lx (ka) Cylinder Block-oil Pan .
Some items from this specific schematic: Bolt, Plug, 14mm, Block Assy,cyln, Bolt, Stud 6x28, Bolt-wash 11x116.