8 it is seen especially in fig3 6 and 8 that the filter support 28 comprises lugs 40 which are unitary with the mounting plate 24 and are separated by spaces 42 the spaces 42 providing gaps through which oil can flow as it enters the filter cartridge 10 fig1 through the central opening 30 of the mounting plate 24 a cover 46 fits over the outwardly facing surface 48 of the mounting plate 24 the cover having a peripheral portion 50 which crimps with the second end 22 of the cylindrical housing 16 as is seen in fig7 and 8 the outwardly facing surface 48 of the mounting plate 24 has welding points 52 which provide a welding area so that the mounting plate 24 forms an assembly with the cover 46 which an assembly facilitates assemblage of the container 14 with the filter element 12 therein to form the filter cartridge 10 while welding points 52 are preferred the cover 46 may be attached to the mounting plate 24 in other ways such as being crimped press fit bonded with adhesive or even screwed or bolted as is readily seen in fig8 the mounting plate 24 does not have a constant cross section because the lugs 40 have a thickness in the axial direction which is greater than the thickness of the plate portion 29 of the mounting plate in addition the helical thread 32 is formed in the wall of the opening 30 while the projections 52 are formed on the surface 48 these are not structures.