日本特殊螺旋工業 Company Profile

Connecting everything - Leave it to us for difficult-to-machine materials, bolts, and machining.

Recently, we continuously create special steels, always seeking the best ideas, unafraid of failure, and driven by traditional experience and an insatiable curiosity, finishing them as bolts. As a bolt manufacturer originating from Japan, we connect industries, companies, machinery, and people around the world. Utilizing our processing technology for difficult-to-cut titanium alloys, we have built a track record with a wide variety of steel materials, including nickel-based alloys and high-strength stainless steel. Our "rolling" and "hexagonal hole punching" processes have received high praise from many companies seeking "non-deforming bolts." Recently, we have also accumulated delivery records for semiconductor-related, high-pressure pump-related, and chemical plant applications. Products made from titanium alloy Ti-6Al-4V are produced by cutting and rolling "forged materials" and "round materials" to create the threaded parts, exceeding the strength of the material and ensuring optimal quality as bolts. Our products have contributed to the realization of Japan's cutting-edge industrial technology, bringing numerous victories in harsh racing scenes.