主权项 |
1. A system for the attachment of a planar substrate above a structural surface, said planar substrate adapted for the attachment of a flooring product, comprising;
a structural panel having at least one open cell formed therethrough; at least one rigid clip for the retention of said structural panel onto a structural surface or member located there below said structural panel, said clip having a hemispherical indentation formed thereon with an orifice formed therethrough a midpoint of said indentation; a mechanical fastener having a threaded shaft with a hemispherical body drive head at a proximal end of said shaft, wherein said mechanical fastener is capable of pivotal movement within said hemispherical indentation of said clip, while said hemispherical indentation remains completely matingly engaged by an outer surface of said hemispherical body drive head. |