| 摘要 |
<p>PCT No. PCT/JP83/00089 Sec. 371 Date Nov. 23, 1983 Sec. 102(e) Date Nov. 23, 1983 PCT Filed Mar. 24, 1983 PCT Pub. No. WO83/03451 PCT Pub. Date Oct. 13, 1983.A bolt adapted for use in automated manufacturing line such as automotive vehicle assembly line, can be tightened from one side with a mechanical wrench (16). The bolt has a threaded portion (16) engageable with a nut (18), a pin-tail (18) gripped by the mechanical wrench, and a guide section between the threaded portion and the pin-tail. The guide section has a length (l) determined in relation to the thickness (L) of the nut. The length of the guide section is selected so that approximately the entire length of the pin-tail can protrude from the nut when the nut is preliminarily attached to the bolt with about one turn of rotation.</p> |
