单词	setscrew
释义	setscrew noun set·​screw ˈset-ˌskrü  1 : a screw screwed through one part tightly upon or into another part to prevent relative movement 2 : a screw for regulating a valve opening or a spring tension Example Sentences Recent Examples on the Web Tighten the setscrew with a 5⁄32-inch Allen wrench. Joseph Truini, Popular Mechanics, 16 Jan. 2021 Most motors and machines, including anything with belts and pulleys, have tiny setscrews that only accept Allen wrenches. Joseph Truini, Popular Mechanics, 25 Apr. 2020 Word History First Known Use 1849, in the meaning defined at sense 1
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