in partially embedded relation within a wall segment 32 defining an outer wall of a fluid containment unit such as an oil pan or the like in the illustrated arrangement the threaded segment 22 projects outwardly away from an exterior surface 34 of the wall segment 32 to engage the filter 30 the knurled ring segment 12 is disposed at a position below the exterior surface 34 such that the knurled ring segment 12 engages at least a portion of the thickness dimension in the wall segment 32 and is held in clamped relation by the surrounding wall segment as will be appreciated the contoured surface of the knurled ring segment 12 substantially limits rotation of the connection element 10 thereby facilitating a tight threaded relation between the connection element 10 and the filter 30 or other displaceable member accordingly torque applied to the filter 30 does not translate to rotation in the connection element 10 moreover the presence of the connection element 10 within the wall segment 32 may provide enhanced stability to the wall segment 32 by way of example only insert molding may be used to achieve the desired orientation of the connection element 10 within the wall segment 32 to achieve secure engagement such insert molding may be carried out by first forming the connection element 10 and thereafter molding the wall segment 32 around a portion of the knurled ring segment 12 and the collar segment 14 such that a portion of the material forming the.