Shear Nut

Security Shear Nuts provide a permanent fastening that is very hard to remove once installed. Shear Nuts are driven with a socket or spanner. The hexagonal part shears off at a pre-determined torque, leaving a tamper proof head with no recess. Shear Nuts are therefore an ideal security nut.


  • Metric: Dia M6 - M20
  • Imperial: Dia 5/16" - 3/8"
  • Threads: Metric Coarse, Imperial UNC
  • Head Style: Hex
  • Material/Finish: Zinc Plated, Galvanised, Stainless Steel