High hardness hexagon socket set screw

The company Nagaiki SEIMITSU which was founded in 1901 as a mass production facility for screws,

has used its accumulated expertise of over 100 years to create hex socket set screws with higher precision, hardness, and toughness by utilizing SNCM240 material.

Our micro screws are finished through Vacuum Furnance Dryer after Black Oxide treatment,so the screws always clean without your hands make dirty with oils.

We have developed inspection and sorting systems that utilize electronics for quality control, enabling continuous visual sorting. We are committed to achieving a "0% defect rate."

Widely used in high-end operating conditions such as aviation, ships, and control mechanisms