Technical documentation detailing "engagement rate" and "standard engagement height."
The engagement rate of male and female threads refers to the percentage of the actual engagement height compared to the standard engagement height. "Actual engagement height / Standard engagement height × 100%" The "fit strength" of male and female threads is also influenced by the relationship (engagement rate) between the outer diameter of the male thread and the inner diameter of the female thread. This technical document covers the "engagement rate." It also provides detailed information about the standard engagement height and more. [Contents] ■ What is the engagement rate of male and female threads ■ Standard engagement height ■ Supplementary explanation *For more details, please refer to the PDF document or feel free to contact us.
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Since our founding in 1923, the YAMAWA Group has been dedicated to researching and developing the highest quality cutting tools—such as taps, dies, and center drills—to meet the ever-evolving technological needs of the market. Guided by the founding spirit of contributing to the progress and development of Japan’s machinery industry, we continue to pursue excellence as specialists in cutting tools. YAMAWA products are trusted across a wide range of industries, from space exploration and aerospace to automotive, shipbuilding, machine tools, home appliances, and IT-related sectors—both in Japan and worldwide. Staying true to our philosophy of providing “Reliable Screw Threads”, we constantly refine our technology and quality management systems. As Japan’s first tap manufacturer to obtain ISO 9001 certification, we take pride in our heritage while striving to advance innovation and deliver cutting tools that support manufacturing around the world.