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A wingnut or wing nut is a type of nut with two large metal "wings", one on each side, so it can be easily tightened and loosened by hand without tools. A similar fastener with a male thread is known as a wing screw〔https://www.fastenal.com/products?term=wingscrew&searchMode=productSearch〕〔http://www.grainger.com/category/thumb-screws/screws/fasteners/ecatalog/N-8ndZ1z0koj5 uses "thumb screw, wing"〕 or a wing bolt.〔http://www.merriam-webster.com/dictionary/wing%20bolt〕 File:Wingnut-hardware.jpg|Three wingnuts File:Bicycle wing nuts.jpg|Bicycle wingnuts File:2006-07-06 splash 10.jpg|Three wingnuts securing a cymbal and its mounting File:Tom-tom 12x8.jpg|Three wingnuts and wingbolts supporting a drum ==Types== ASME B18.6.9 classifies wing nuts first by manufacturing method and then by style. * Type A are cold forged or cold formed produced in regular, light and heavy dimensional series. * Type B are hot forged solid nuts available in three different wing styles. * Type C are die cast nuts available in three wing styles with variances between regular and heavy dimensional series * Type D are stamped sheet metal nuts available in three wing styles. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wingnut (hardware)」の詳細全文を読む スポンサード リンク
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