| 摘要 |
<p>The present invention relates to a small nut for a screwdriver characterized by including a cylindrical body (10) with a first outer diameter (D1); a screw hole (15) penetrating through the body (10) and including a screw thread on the inner circumference; a protrusion (20) formed on the upper part of the body (10) and having a second outer diameter (D2) larger than the first outer diameter (D1); and a wrench groove (25) formed on the inner circumference of the protrusion (20), wherein a wrench of a coupling tool is inserted. The present invention is capable of easily joining upper and lower small objects (P1, P2) to be fixed forming a small product such as a shower head or a ceiling-type spring cooler when assembling the small product.</p> |
