A hex nut is a low-profile type of nut, typically half as tall as a standard nut. It is commonly used as a type of locknut, where it is “jammed” up against a standard nut to lock the two in place. It is also used in situations where a standard nut would not fit. Hex jam nuts are thinner than a standard hex nut but have the same dimension across the flats and corners.


  • M.S . 4.6G, 5.6G, 4.8G
  • High tensile : EN8, 8.8G, 10.9G, 12.9G
  • Finish : Self , auto black , Zinc plated , hot dip galv. , aluminium & zinc flake coating

Size: M6-M52

Grade: 4/5/6/8/10

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