These hexagonal nuts are used for connections, which are often tightend and released. They are executed in a way that washers are not needed.

Designation of a hexagonal nut with collar with           thread M 20

Hexagonal nut DIN 6331 M20

  • Deliverable with fine pitch, higher grades, in stainless or other special material too.
  • Material : up to M 36 – 8 or 10
    Material : DIN EN 20898T2 > M 36
    240 + 62 HV 30 (188 + 114 HV 30 tolerable)