Ｈ・Ｃ・Ｔ List of Products and Services

We would like to introduce our company's "washers." These are applicable to all items fastened with bolts and nuts in areas involving vibrations, such as railways, automobiles, aircraft (rockets), agricultural machinery, and more. By simply switching to this product, you can easily convert existing screws into ones that do not loosen, leading to improved safety and reduced costs. Would you like to become an exclusive manufacturer of patented components? Please feel free to contact us for prototypes or consultations. 【Features】 ■ Patented dome-shaped components (spring washers and washers) ■ Easily converts existing screws into ones that do not loosen (spring washers and washers) ■ Applicable to all items fastened with bolts and nuts ■ Unlike existing washers, it disperses stress and has no cutouts in the main body ■ The sealing and airtightness after screw fastening are significantly higher than existing products ■ Can be used for valve fastening in future hydrogen fuel applications * For more details, please refer to the PDF document or feel free to contact us.

• nut

We will introduce the differences between the washer patent and JIS standards. The test was conducted for 17 minutes with 30,000 vibrations. The results of the vibration test showed that the commercially available spring washer fell off in 2 minutes and 13 seconds, while the double nut using two commercially available nuts fell off in 7 minutes and 50 seconds. However, our "patented dome-shaped washer" passed the 17-minute, 30,000 vibration test. [Vibration Test Results] ■ Commercially available spring washer: 2 minutes and 13 seconds - fell off ■ Double nut using two commercially available nuts: 7 minutes and 50 seconds - fell off ■ Patented dome-shaped washer: Passed 17 minutes and 30,000 vibrations *For more details, please refer to the PDF document or feel free to contact us.

• nut

H・C・T is looking for companies that can enter into patent licensing agreements. Applicable to all items fastened with bolts and nuts. Our washers are designed with a dome shape to provide spring-like properties, creating a tapered shape when fastened. This principle ensures that they do not loosen even in areas subjected to intense vibrations, thanks to the spring action of the dome shape. They can be used safely and securely in all fastening applications. Would you like to become an exclusive manufacturer (production and sales) with this patented component? Shall we work towards making this component recognized as the standard when people think of washers? Please feel free to contact us with any inquiries or questions. 【Features】 ■ Can easily convert existing screws into non-loosening screws ■ Applicable to all items fastened with bolts and nuts ■ Particularly effective and beneficial for products used in railways, automobiles, aircraft (rockets), agricultural machinery, and other areas subject to vibrations *For more details, please refer to the PDF materials or feel free to contact us.

• nut

We would like to introduce our "washers." Applicable to all items fastened with bolts and nuts in areas involving vibrations, such as railways, automobiles, aircraft (rockets), agricultural machinery, and more. By simply switching to this product, you can easily convert existing screws into ones that do not loosen, leading to improved safety and cost reduction. Would you like to become an exclusive manufacturer of patented components? Please feel free to contact us for prototypes or inquiries. 【Features】 ■ Patented dome-shaped components (spring washers, washers) ■ Easily converts existing screws into ones that do not loosen (spring washers, washers) ■ Applicable to all items fastened with bolts and nuts ■ Unlike existing washers, it disperses stress and has no cutouts in the main body ■ Sealing and airtightness after screw fastening are significantly higher than existing products ■ Can be used for valve fastening in future hydrogen fuel applications * For more details, please refer to the PDF document or feel free to contact us.

• nut