Nakanishi metal works Co., Ltd.

100 Years of Japanese Engineering Excellence.

Trusted by every high-speed train (Shinkansen) in Japan, Nakanishi Metal Works (NKC) brings a century of precision hardware innovation to the North American market. We specialize in high-performance, fully customizable window and door hardware designed to meet your unique vision without compromise. From heavy-duty rollers supporting 2,205 lbs to our revolutionary "Boost" technology that reduces operating force by 1/3, we redefine industry standards. Proudly supported by our manufacturing facility in Georgia, USA, we ensure local support and faster delivery.