三友製作所 Company Profile

A small factory that makes screws even 100 years from now.

Since our establishment, we have been continuously producing industrial products such as NC lathes, NC automatic lathes, screws, special screws, and studs through rolling. We are a small factory located in Ota Ward, Tokyo, but we take pride in our craftsmanship and carefully manufacture screws. We accommodate orders from small to medium lots, as well as custom special screw processing. We possess NC lathes, NC automatic lathes, and rolling machines, enabling us to handle a wide range of screw manufacturing processes, including lathe processing, rolling, hot forging, heat treatment, and painting.