Hex Flange Serrated (Wizz) Lock Nuts

Hexagon Flange Nuts is a Hex Nut with a washer like flange with serrations built in, that grip the material surface and prevent the nuts from loosening in applications. By using Flange Serrated Nuts this saves time on installation, as you don't require a separate lock washer.


  • Metric: Dia M3 - M20
  • Imperial: Dia #6-32 - 3/4"
  • Threads: Metric Coarse/Fine & Imperial UNC, UNF
  • Strength: Class 6, 8, 10, Grade 2, 5, 8 & A2-70, A4-70/80
  • Material/Finish: Plain, Zinc Plated, Hot Dip Galvanised & Stainless Steel
  • Compliance: DIN 6923, ISO 4161, IFI 145, ANSI B18.2.2