Flat washer
Using a large-diameter round washer for wood when the counterpart material is wood prevents sinking!
We would like to introduce the "round washers" that we handle. We offer a wide range of products including ISO, ISO small size, JIS, JIS small size, brass round washers, standard round washers, and standard round washers made of iron. When the counterpart material is wood, using larger diameter round washers for wood can prevent sinking. 【Product lineup (partial)】 ■ Round washer ISO ■ Round washer ISO small size ■ Round washer JIS ■ Round washer JIS small size ■ Brass round washer standard *For more details, please feel free to contact us.
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【Other Lineup】 ■ Round Washer Thin Type ■ Iron Standard Round Washer ■ Iron Round Washer for Wood ■ Round Washer (Special Size) *For more details, please feel free to contact us.
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Company information
Our company is a specialized trading firm that handles a wide range of products related to manufacturing, centered around "screws." We offer not only tools, carts, and standard screw products but also processed and drawing items made of metals, plastics, and harnesses. Additionally, we handle various types of transport robots such as AGVs and AMRs. Since our establishment in 1957, we have been engaged in transactions with many suppliers both domestically and internationally. Our strengths lie in our reliable quality, competitive pricing, and speedy responsiveness. In addition to our headquarters in Tokyo, we have branches in Kawasaki, Tochigi, Shizuoka, Osaka, the Philippines, Vietnam, Shanghai, and Hong Kong, where our sales representatives provide consistent support from quotations to after-sales follow-up. We also have a subsidiary, Tokai Lock Co., Ltd., which specializes in anti-loosening processing for screws. We will provide optimal proposals tailored to your needs, so if you have any issues related to manufacturing, please feel free to contact Koyama Co., Ltd.
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