Using illustrations to clearly explain examples of problems caused by excessive tightening based on basic information!
Screw fastening refers to the process of fastening two or more components using screw parts. This document summarizes the surrounding knowledge of "screw fastening" in an easy-to-understand manner using illustrations. If you have any concerns regarding screws, please feel free to consult our company, which has world-class screw production capabilities. [Contents] ■ What is screw fastening ■ Examples of screw fastening ■ Problems caused by over-tightening Others *For more details, please refer to the PDF document or feel free to contact us.
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【Examples of Problems Due to Over-tightening】 ■ Breakage of the male thread body ・Occurs with metallic counterpart materials ・Occurs with hard resin counterpart materials ■ Thread shear: Occurs when using small screws and the internal thread has high strength ■ Breakage of the internal thread: Occurs when the counterpart material is resin ■ Dimpling of the joined object: Occurs when the joined material is soft or when the joined material is thin *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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We want to be of even more help to our customers. NITTOSEIKO's technology supports global manufacturing. NITTOSEIKO is a unique company that specializes in industrial fasteners (screws), automatic assembly machines, measurement and control systems, and cleaning and inspection equipment - areas not covered by other companies. We are a total fastening solutions provider, manufacturing and selling not only screws but also screw manufacturing tools, driver bits, screw tightening machines, assembly equipment, measurement instruments, cleaning equipment, and inspection equipment. Based on our expertise in fastening technology, assembly technology, and measurement technology, we have established three business divisions and a medical division to develop cutting-edge products. Our operations span both domestic and international markets, supporting the growth of various industries, including home appliances and automobiles, and contributing to the enrichment of people's lives. We will continue to create valuable products for our customers and work together with them to pioneer new frontiers in manufacturing.





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