85问答库 > Z3⼀4螺纹锥度怎么算，牙型角是多少度的？

Z3⼀4螺纹锥度怎么算，牙型角是多少度的？

2025-04-07 00:17:03
推荐回答（1个）
回答1：

Z，60°圆锥管螺纹的以前的代号，现在的代号是NPT （国家标准号GB/T 12716）。锥度1：16，牙型角60°，3/4的牙距是每英寸14牙。
3/4外螺纹的基准平面距端面是8.611，基准平面上的大径是26.586。

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