Aluminum 6061 T6 hex nuts offer high strength-to-weight ratio. They are also corrosion resistant, lightweight and durable.

These hex nuts are exceptionally resistant to atmospheric corrosion making KD Fasteners, Inc.’s Aluminum 6061 T6 hex nuts ideal for the automotive and aerospace industries.

Aluminum 6061 is an alloy composed mainly of aluminum with magnesium and silicon added. The T6 designation indicates that the metal is heat treated and artificially aged.

Aluminum 6061 T6 Characteristicsaluminum 6061 t6 hex nuts

  • Good machinability and weldability
  • Structural strength and toughness
  • High resistance to corrosion
  • Lightweight
  • Non-magnetic
  • MilSpec compliant


  • Aircraft
  • Boats
  • Watercraft
  • Bicycles
  • Heat exchangers
  • Air coolers
  • Heat-sinks
  • Hydraulic piping and tubing
  • Cameras
  • Marine
  • Electrical
  • Automobile parts
  • Appliances
  • Railway structures

Aluminum 6061 T6 hex nuts are available in standard (inch) and metric sizing. Standard sizes are available in ¼ inch to 3-inch diameter with larger custom sizes also available. KD Fasteners, Inc.’s Aluminum 6061 T6 hex nuts are made in the United States. Our hex nut styles include:

  • Finished hex
  • Machine screw nut
  • Heavy hex nut
  • Nylon insert lock nuts
  • Top lock nuts

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.