Company Profile

Shinjo Manufacturing Co., Ltd. started as a manufacturer to supply the nuts to automotive industry instantaneously after World War II. We successfully developed the cold forming process of weld nut as the first case in the world, and gradually it evolved to high volume production by cold-forming which now allows us to manufacture 100 million pieces per month.

Besides, due to the demand of weight saving, we duly developed PIAS NUT that fixes to a thin sheet with sufficient strength, thereby, we became the world’s leading manufacturer for its automatic feeding system while expanding our business to Europe and USA.

In 1960’s, we, a specialized company of nut, entered to another category to manufacture male screws for the first time in screw manufacturing history, meanwhile we acquired the patent of self-drilling screws that had been newly introduced to the market at that time, in order to respond to the mass-production by the same cold working. We named it PIAS Screw that hailed around the world with its high-quality evidence.

In 1990’s, we successfully developed an innovative Bi-Metal Screw, the first product in the world that a stainless steel drilling screw drills into the steel sheet, called PIASTA, was instantly spread all over the world.

Although it is natural that a follower comes up in every industry with their innovative products with the times, however, as above, Shinjo Mfg. Co., Ltd. continues to develop innovative products to meet the world’s needs under our company creed, but not limited to that, we are confident that the reason that enables us to maintain its position as the first leading company in the market is a result of our never-ending effort to pursue higher quality improvement and to sharpen its management ability.

At the moment, Shinjo Mfg. Co., Ltd, as a Shinjo Group, takes in charge of nut manufacturing, and QP Fastening Works Co., Ltd. takes in charge of screws. Being responded by the recent globalization, in the view of the world’s standpoint and its management decision towards the future as a group, we decided to establish Shinjo International Co., Ltd. to move on to the next stage of the world.

We, Shinjo Group, manufacture and sell the world top class products. However, we believe that it is more important to meet the demands of the times and enhance our capability. For such purpose, we are willing to be more open minded to the world and do hope that Shinjo International Co., Ltd. will contribute to the world being as a bridge to the future for mutual profit.