Titanium bolt itself is not magnetic, and titanium alloys that do not contain iron are not magnetic, so magnetic interference can be effectively avoided. Titanium parts used for submarine shell, will not cause mine explosion. In addition to national defense, air force, weapon manufacturing, titanium bolt  and titanium alloy parts also widely used in railway engineering, communications, aerospace, aviation, high-tech laboratories, hospitals (scanning, X-ray, magnetic resonance imaging, electrocardiogram, cathode ray imaging tube), medicine, nuclear industry, nuclear magnetic resonance, magnetic spectrometer, high Tesla magnets, outdoor work, dock construction, diving, chemical industry, fire protection, seawater desalination, Shipbuilding, offshore oil and gas platforms, salt industry, etc.