We manufacture automotive components and products
by utilizing the advanced technology and wisdom
that we have cultivated in manufacturing bolts
over many years.
Quality Management System ISO9001
Environmental Management System ISO14001
Bolts for automobiles
At the head office and factory in Futabacho, Numazu City, which started operations in 2008, we established traceability management through the production system, and a thorough quality assurance system using fluorescence X-ray analyzers, image inspection devices, automatic sorters, etc., along with introducing the latest equipment and promoting research and development for new technologies.
Utilizing the bolt manufacturing technology and wisdom cultivated over many years as a manufacturer and distributor of screw parts, we consistently select the materials, manufacture, process, inspect and package approximately 2,000 types of products such as automotive bolts and cold forged precision products used in the drive shafts, brakes, hybrids, electrics and seats of automobiles and motorcycles.
Parts for power trains
Used in the shafts of timing and idler pulleys of automobiles. We can also meet size, shape and detailed demands.
Parts for brakes
Used in disc brake devices to safely and securely decelerate and stop automobiles. We offer high quality and stable products manufactured with cold forging.
Parts for EV/HEV
Used in high-voltage terminals and chargers for electric and hybrid electric vehicles. We offer a variety of products made with precision cutting and machining technology.
Used in the wire harness that transmits electricity to various automobile devices. We also handle various types of small quantities and are striving to reduce the weight of products.
Used for sliding and reclining of automobile seats. We respond to requirements such as weld bolts and collars.
Parts with special shapes
We manufacture a variety of products such as eccentric apertures, mid flanges and built-in washers.
|Size||M5 to M14|
|Material||Iron, stainless steel, copper, brass, titanium alloy and others|
|Surface treatment||Zinc plating, tin plating, copper plating, nickel plating, zinc-nickel alloy plating, silver plating and heat treatment|
Cold and hot forging
Forging is carried out with deformation processing by continuously applying force to coiled wires.
The heads of the screws are punched into a hexagon or square shape.
The products are rolled between rolling molds to create screw threads.
Processes such as grooving and drilling are carried out.
Heat treatment & surface treatment
Antioxidation, durability and wear resistance of the products are enhanced.
Quality inspection of the products is carried out through an image sorter or visually.
The products are managed and stored by packing them in boxes.
Head office factory
Multistage forging machine
Fluorescence X-ray inspection device