| 摘要 |
This invention describes a speed nut that is formed by three surfaces, a lower surface that is a coupling washer to be pressed against the panel or protective device to which it is attached, an intermediate or base surface, and a final surface that is formed by an arm which, folded back on itself, covers the center of the nut. These surfaces have central holes whose centers are vertically aligned. The nut of the invention has a double screw thread, which consists of the conventional thread of the surface or upper arm and of another thread that is present on the base surface. Both screw threads are created by means of cuts that produce independent flanges of different sizes which together form a helical outline that is designed to mate with the corresponding threading of the screw or bolt that will pass through said nut. |
