Trapezoidal couple

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The trapezoidal pair, or screw-nut set (Tr.14x2), is a type of fastening mechanism that features a threaded rod and a nut with a trapezoidal shape. This design allows for secure connections while also providing adjustability and ease of installation. The Tr.14x2 designation refers to the specific dimensions of this particular model, ensuring compatibility with a wide range of applications.