We will respond to all situations.
Our company has focused on the transportation equipment field for two-wheeled and four-wheeled vehicles, utilizing advanced processing technologies that meet high specifications in terms of materials, techniques, and strength, tailored to specific usage locations, environments, and purposes, to provide a wide variety of fastening components. Leveraging our rich experience and achievements cultivated in the transportation equipment sector, we will continue to provide fastening components that can withstand all kinds of harsh conditions.
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basic information
● Engine-related parts ・High-strength bolts ・Parts requiring precision and high accuracy ・Parts requiring airtightness ● Exhaust system parts ・Parts requiring heat resistance ● Body-related parts ・Lightweight parts ・Insert parts ● Chassis-related parts ・Vibration resistance ● Others ・Lightweight material fastening technology proposals ・Assembly technology proposals We also handle various other parts.
Price range
Delivery Time
Applications/Examples of results
1. Engine components 2. Exhaust components 3. Body components 4. Chassis components 5. Others
Detailed information
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High-strength bolts Material selection, shape, and heat treatment considering fatigue, loosening, and delayed fracture are realized. We also propose fastening methods.
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Precision High Accuracy Parts with precision that directly affects product performance, such as engine components and machine parts, are met with advanced technical skills to meet extremely high demands for accuracy and quality.
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Air-tightness For components such as oil reservoirs and liquid/gas passages that require airtightness, a technology has been developed to ensure a high level of airtightness through only forging processes, which traditionally required machining of the seating surface. This has achieved significant cost reductions.
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Heat-resistant bolts made from materials such as SNB16 and SUH660, which have excellent heat resistance. Also compatible with surface treatments to prevent seizing.
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Lightweight bolts made of materials such as aluminum, titanium, and resin. For titanium, solid solution precipitation (up to 1100 MPa class) has been achieved. Surface treatment to prevent seizing is also possible. There is a proven track record of use in harsh racing conditions, and they have received high praise.
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Insert parts We provide parts that are inserted into resin, cast parts, and more, using the optimal materials, shapes, and processing methods. We validate and propose from all angles, including applications, installation locations, required fastening strength, and tightening torque.
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We propose measures to prevent loosening suitable for all usage conditions, including vibration, forward rotation, and reverse rotation. If you are experiencing issues with loosening, please feel free to contact us.
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Lightweight Materials Fastening Technology We propose lightweight materials such as high-strength steel plates, aluminum, magnesium, and resins, which will be increasingly used in the future. We provide fastening components that take into account the characteristics of each material.
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Assembly technology As fastening components that achieve improved workability and reduced man-hours during assembly, we propose cost reductions for fastening as a whole, including anti-jamming bolts, paint-stripping bolts, blind rivets, and nuts.
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Company information
Maruichi is a professional group specializing in "fasteners" and small parts. As a technology development manufacturer that caters to all types of fastening components, we contribute to society by providing a variety of products that are not limited by materials or shapes, focusing primarily on small parts. Our main products include screws such as bolts and nuts, resin components, fasteners, and machined parts. We also accommodate special items tailored to customer requests, with a product lineup exceeding 10,000 items.