| http://www.w3.org/ns/prov#value | - Retainer 90 may also include a wide variety of conventional mechanical fasteners such as threaded rods, bolts, lag screws, and other threaded fasteners, or a variety of specially designed fasteners to interconnect and resist both horizontal and vertical movement of any overlying modular members 12 which are not adequately restrained from movement by the superimposed weight of other modules.
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