fastening a load carrier by engagement with a masking strip a sealing strip or the like which covers that space where the projecting portion 9 of the body is located in the embodiment according to fig1 the engagement member 2 of the support foot 3 is designed as a catch which is movable in the longitudinal direction of the clamping direction 7 the engagement member 1 on the securement means 8 is designed as an elongate cup which accommodates in itself a part of the engagement member 2 so that tension loading may thereby be transferred from the engagement member 2 to the engagement member 1 the engagement member 1 of the securement means 8 is connected to the rest of the securement means 8 proper by the intermediary of a thin neck portion 10 which in the embodiment shown on the drawing consists of a sheet strip which connects the engagement member 1 with remaining parts of the securement means 8 in this embodiment the securement means is of an extent in the flat plane of the drawing of the order of magnitude of between 5 and 15 cm the neck portion 10 extends through a slit shaped aperture in beneath a masking strip 11 which in the body type under consideration here is employed to conceal the projecting portion 9 of the body the contour line of a portion of a vehicle door connecting to the masking strip 11 is intimated by reference numeral 12 within the space behind beneath the masking strip 11 the.