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Unytite looking to contribute to the longevity of world heritage sites

Article - March 14, 2023

With its high-quality fasteners for multiple applications, Unytite is supporting the reinforcement of historical buildings and driving construction forward.


“We have been involved in more jobs concerning the reinforcement of old castles and such buildings.”

Jun Hashimoto, President, Unytite Corporation

Manufacturing and construction often involve the bringing together of huge amounts of individual parts designed and created by thousands of different companies. When it comes to fastening solutions it is vital that these parts are perfectly in-sync, and this leads to the desirability of holistic solutions.

Japanese manufacturer Unytite has built its reputation on its ability to provide not just the nuts and bolts needed by its customers, but entire fastening solutions to fit specific situations. The company’s products include nuts, bolts, and washers, and it prides itself on also providing services for fastening problems across a range of industries including automobiles and construction.

Unytite manages to provide these holistic solutions thanks to its wide-ranging production methods that include hot forging, cold forging, machining, grinding, and heat treatment. These products, all assembled to ISO 9001 and ISO 14001 registered standards, include high-strength bolts utilized for structures, hexagonal bolts for friction joining, and its UNY Torisia tension control (TC) bolts. These TC bolts are especially useful for construction as they can fasten themselves automatically and feature a pintail that shears off when proper torque is achieved, ensuring dependable and repeatable tension levels.

As company president Jun Hashimoto explains, Unytite can not only offer the part of a drive shaft that a customer orders, but also the peripheral components and joints. “From the customer’s perspective, it is easier if they can perceive the total solution rather than only a part of the component.”

The ability to produce these holistic solutions under one roof also has the advantage of allowing Unytite to quickly find and resolve any assembly or quality control issues for its products, rather than the testing of individual components from different suppliers.

The company’s products are now being used to reinforce and protect world heritage sites, such as Japan’s Nijo Castle, while also driving forward the industries of the future through its support of wind power generation. With regards to working on the reinforcement of older buildings and bridges, Mr. Hashimoto says: “We are trying to get involved in more of these types of old building reinforcement projects. It is still in construction, but more of a niche sector. It is a subsector that interests us.”

Parallel to this growth into new sectors, Unytite has also expanded its international presence through mergers and acquisitions, not least in the U.S.A., where it has acquired a distribution company in Houston. The company is also open-minded to more international partnerships, especially in Southeast Asia where it can help in construction projects and in Europe where its products can serve in the remodeling and protection of aging buildings.

Unytite’s customer-centricity is behind its holistic solutions, and Mr. Hashimoto says it will continue to drive the company forward: “We focus on our customers’ problems – what they want, what they are suffering, what they need – and address those not only with our products, but also with the additional value of our services.”