With strength far surpassing materials like Titanium Grade 2 and 316 stainless steel, Titanium Grade 5 lock nuts are a great choice for the oil and gas industries as well as military applications.

Titanium grade 5 lock nuts also offer lightweight, stiffness and toughness. These lock nuts are resistant to seawater up to 500°F and are shown to last almost two decades in tests of polluted seawater. Additionally, they show no signs of pitting and crevice corrosion even when one mile below the surface. They are also resistant to erosion up to a velocity of 120 feet/second lending them well to the aerospace and aircraft industries.

Titanium Grade 5 lock nuts are resistant to attack by pure hydrocarbons and most chlorinated and fluorinated hydrocarbons provided there is no acid contamination. They are also fully resistant to solutions of chlorides, hypochlorides, chlorates, perchlorates and chlorine dioxide making them ideal for the paper industry.

Titanium Grade 5 is 6% aluminum and 4% vanadium.

Titanium Grade 5 Characteristicstitanium grade 5 lock nuts

  • Also knowns as Ti 6AI-4V
  • Heat treated to increase strength
  • High strength at a lightweight
  • Useful formability
  • Good corrosion resistance
  • Strong in cryogenic temperatures to 800°F
  • Twice as strong as Titanium Grade 2
  • Lower thermal conductivity than other titanium grades
  • Corrosion resistance to salt water and other chlorides


  • Aerospace
  • Medical
  • Marine
  • Chemical processing
  • Aircraft
  • Engines
  • Automotive
  • Marine
  • Sports equipment
  • Oilfield components
  • Compressors
  • Jet engines
  • Helicopters

Titanium Grade 5 Lock Nut Styles

  • Grade C all-metal cone
  • Grade A reversible
  • Flexloc nut
  • Nylon insert

Titanium Grade 5 lock nuts are made in America. Whether you need a standard or custom size, KD Fasteners has a solution for you. Contact us today by calling 1-800-736-5014 or filling out our contact form.