コヤウチファスナー Company Profile

We accept inquiries regarding cost reduction, shortened delivery times, and small lot production for screws, bolts, and cold-formed parts.

The products of Koyauchi Fastener Co., Ltd. are used in various industries and fields that form the foundation of everyday life, including construction, civil engineering, automotive, electrical, industrial machinery, toys, medical devices, railway vehicles, and agricultural machinery. In particular, our "non-standard sizes," which are thick and short or thin and long, are well-received by many customers. We aim to contribute even more to the industries and fields that support our daily lives through product development that meets customer needs, in addition to our existing product lineup.