Abstract: An attachment assembly is disclosed for providing anchorage points in a motor vehicle for attachment of passenger safety restraints such as children seating units and safety harnesses, headrests and such like. The assembly includes a beam and a pair of mountings adapted to co-operate with respective ends of the beam and arranged, in use, to support the beam in a position adjacent the top of a vehicle seat or seats. Each mounting includes an attachment plate to be secured to the vehicle and having flanges forming a mouth for lateral reception of the respective beam end and an apertured box-shaped casing provided on the respective beam end and interfittable with the flanges so as to close the mouth and constrain the beam from movement laterally and lengthwise of the mountings.