A new screw, "Motion Tight," with an elastic structure of the thread that prevents loosening just by tightening it normally! It is resistant to contamination and strong against temperature changes.
The "Motion Tight" developed by Art Screw is a "looseness prevention bolt" that solves the problem of loosening bolts and screws. It has been adopted in various fields such as artificial satellites, automobiles, motorcycles, robots, wind power generation, and semiconductor manufacturing equipment. Since it does not require adhesives or other anti-loosening products, it achieves significant cost reductions! Additionally, it has excellent functionality that withstands temperature changes. 【Exhibition Information】 ■ First Event Exhibition Name: AXIA EXPO 2026 Date: June 3 - June 5 Venue: Aichi Sky Expo (5-10-1 Centrair, Tokoname City, Aichi Prefecture) Booth Number: E-36 ■ Second Event Exhibition Name: Automotive Technology Exhibition NAGOYA 2026 Date: June 17 - June 19 Venue: Aichi Sky Expo (5-10-1 Centrair, Tokoname City, Aichi Prefecture) Booth Number: 304 *For more details, please contact us via the "Contact Us" button below or feel free to view the materials from the "Download Catalog" button.
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basic information
【Patent Numbers】 ■Patent No. 4806103 ■Patent No. 4878407 【Evaluation Tests】 ■NAS Vibration Test →Passed a vibration test with a total of 30,000 rotations over 17 minutes ■Yunker Vibration Test →Comparison data with standard products available on the official website ■Fatigue Test: JISB1081 →Approximately 20% improvement ■Load Distribution Ratio (%) Standard Bolt: Motion Tight →Thread No. 1 32.9： 26.4 →Thread No. 2 19.7： 19.6 →Thread No. 3 14.1： 15.6 →Thread No. 4 11.5： 13.4 →Thread No. 5 10.4： 12.2 →Thread No. 6 11.4： 12.8 → Total 100.0： 100.0 *Motion Tight has a more averaged load distribution ratio compared to standard products, resulting in higher fatigue strength and reduced likelihood of breakage. *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
Price information
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Delivery Time
※In-stock items: approximately 1 week / Made-to-order items: approximately 1 to 2 months
Applications/Examples of results
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Detailed information
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Motion-tight structural diagram The entire thread exhibits strong spring force, creating a force that tries to return to the seat side.
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Before the conclusion: Contact from the summit. The axis of the bolt is drawn out and extended from the summit as the starting point.
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After the connection: Contact on the plane The axis makes contact with the female thread (nut) on the plane as it extends. As the extended axis tries to return to its original state, a strong anti-loosening force is generated.
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[Regarding Stress Concentration] - General screws have stress concentration at 3 threads. - MotionTite distributes stress across all threads. - Fatigue strength is improved, making it more resistant to delayed failure.
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Company information
Art Screw Co., Ltd. is a company that develops, manufactures, and sells anti-loosening screws. Its flagship product, Motion Tight, holds infinite potential, contributing to cost reduction and weight savings through the reduction of bolts. We hope that it will be distributed worldwide in the future, and if this standard becomes the de facto standard soon, it may reduce accidents caused by screw loosening and help create a safer world.
