| 摘要 |
PCT No. PCT/EP93/03138 Sec. 371 Date Sep. 20, 1994 Sec. 102(e) Date Sep. 20, 1994 PCT Filed Nov. 10, 1993 PCT Pub. No. WO94/11604 PCT Pub. Date May 26, 1994The present invention relates to a screw hole (12) in hardware parts (10), especially in metal furniture hardware, in which is screw with a given outside thread diameter provided with a truncoconical countersink head can be preinstalled. The hole (12) has a countersink (18) matching the truncoconical head of the screw, followed by a substantially cylindrical hole section (20) for the passage of the shaft of the screw. The inside diameter of the cylindrical hole section (20) is slightly smaller than the outside diameter of the screw shaft measured across the threads of the screw (14), and into the cylindrical hole section an internal thread (24) is worked into the cylindrical hole section, where the length of the threaded shaft as measured in the screw driving direction is shorter than that of the unthreaded shaft section of the screw adjoining the bottom of the countersink head.
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