connectors 14 so that the slotted tee 11 is prevented from shifting laterally and or twisting longitudinally i e about an axis parallel to its longitudinal axis to be commercially competitive tees are manufactured with different strengths to meet industry or government standards while not unduly exceeding these standards with unnecessary material content to satisfy this economic constraint a manufacturer inter alia uses different gauge thickness material to construct the tee the gauge being heavier the greater the duty rating or load capacity of the ceiling grid another constraint on a manufacturer is the need to use the same end connector configuration for any cross tee 12 regardless of the duty rating of the grid the requisite variation in the web thickness of conventional tees and the need for a single end connector or clip configuration has been problematic if the connector is proportioned to fit thick webs slotted grid tees with thin webs are loosely held by the connectors if a connector would be proportioned to fit closely with a conventional slotted tee with a thin wall web it would not lock with a mating identical connector on a heavy wall slotted tee because the thicker web would hold the connectors apart the invention solves the problem of a loose fitting slotted tee by locally modifying the grid tees in the web area of the slot so that regardless of the gauge thickness of the material of their web they present the same or nearly the same effective thickness to the connectors preferably according to the invention this is.