Gods dwell down to details. (Mirl van der Rohe)
Exquisite technology that supports colossal buildings.

The roots of "Tohoku bolt MFG. Co., Ltd" originated in "Bolt factory of Coal-mine equipment manufacturing union" that had been manufacturing products for rail fastening in the coalfield mine and equipping underground machine facilities.

The secure quality to protect human life was required under the unusual circumstances of a mine.

We have engaged in manufacturing various products according to demand change, and we always have and always will maintain a strictress toward the quality of our products.

Our company is a bolt manufacturer of the hot forging that has the technology of a domestic top class. It is a company that treats the metalworking product from a special bolt, and has grown up from a usual bolt and the metalworking product in a severe quality control and the LOW cost. Various stock products are sold in the selling department.

There are about 30,000 kinds of kinds of the manufactured bolt. As for the diameter of the bolt, length is various from the most small 8mm to 110mm or less in each usage.

The employee is manufacturing a lot of commodities at the same time for several ten million yen with a doing machine or an improved nonstock machine. The setting of the machine is changed according to the kind of the bolt, the employee who exceeds the long service 20 years succeeds to the technology to a young employee, the machine is operated by high technology, and it manufactures it from the person work.

Thorough management that doesn't compromise in technology that improves strength of bolt. Our technical level is supported with an exquisite technology that supports the building of gigantic proportions. In the construction of Shinkansen of Taiwan, as many as 1.5 million bolts that stopped railing were delivered in large quantities.

There are a lot of results also in foreign countries. There are four kinds of bolts about the rail, engineering works, the machine, and construction. It has pride that our bolt supports the company.

Employees who work putting on the hat and cotton work gloves even if it steams because of the noise of the machine tool and the heat of dissolution of the steel material, it returns, the window and the door are opened, and the large-scale fan is turned are sweaty, and employees in factory who work hard while wiping off the sweat of the dripping forehead.