About: Coupling nut

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A coupling nut, also known as extension nut, is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes. The outside of the fastener is usually a hex so a wrench can hold it. Variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. Coupling nuts can be used to tighten a rod assembly inward or to press a rod assembly outward.

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  • A coupling nut, also known as extension nut, is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes. The outside of the fastener is usually a hex so a wrench can hold it. Variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. Coupling nuts can be used to tighten a rod assembly inward or to press a rod assembly outward. Along with bolts or studs, connecting nuts are also often used to make homemade bearing and seal pullers/presses. The advantage of a connecting nut over a standard nut in this application is that, due to its length, a greater number of threads are engaged with the bolt. This helps to spread the force over a larger number of threads, which reduces the possibility of stripping or galling the threads under a heavy load. (en)
  • 六角長形螺母, 也稱為延伸螺母,是用於連接兩個陽螺紋的螺紋緊固件,最常見的是螺紋桿。緊固件的外側通常是六角形,因此扳手可以握住它。變型包括“減少連接螺母”,用於連接兩個不同尺寸螺紋的“視孔連接螺母”,它們有一個觀察孔,用於觀察接合量和用左手螺紋連接螺母。這些用於由較短長度的桿組成長桿組件。桿擰入聯接螺母一定距離。聯接螺母尺寸由工業緊固件協會以標準IFI-128描述。這是一個簡單的完成。根據所用的棒料,它可以是冷拉或熱軋。有兩種不同的螺紋尺寸和輪廓螺紋連接螺母被稱為異徑接頭螺母。 可以使用延伸螺母向內擰緊桿組件或向外按壓桿組件。 (zh)
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  • 六角長形螺母, 也稱為延伸螺母,是用於連接兩個陽螺紋的螺紋緊固件,最常見的是螺紋桿。緊固件的外側通常是六角形,因此扳手可以握住它。變型包括“減少連接螺母”,用於連接兩個不同尺寸螺紋的“視孔連接螺母”,它們有一個觀察孔,用於觀察接合量和用左手螺紋連接螺母。這些用於由較短長度的桿組成長桿組件。桿擰入聯接螺母一定距離。聯接螺母尺寸由工業緊固件協會以標準IFI-128描述。這是一個簡單的完成。根據所用的棒料,它可以是冷拉或熱軋。有兩種不同的螺紋尺寸和輪廓螺紋連接螺母被稱為異徑接頭螺母。 可以使用延伸螺母向內擰緊桿組件或向外按壓桿組件。 (zh)
  • A coupling nut, also known as extension nut, is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes. The outside of the fastener is usually a hex so a wrench can hold it. Variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. Coupling nuts can be used to tighten a rod assembly inward or to press a rod assembly outward. (en)
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  • Coupling nut (en)
  • 六角長形螺母 (zh)
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