Bright Steel Castle Nut

Bright Steel Castle Nuts provide positive locking in high vibration and motion applications, such as automotive. The slots can accommodate a cotter, split, or taper pin or wire, which prevents a nut from loosening. Suitable for applications in climates that experience low humidity and dry conditions.


  • Metric: Dia M8 - M64
  • Imperial: Dia 1/4" - 3"
  • Threads: Metric Coarse/Fine & Imperial UNC/UNF, BSF, BSW, SAE
  • Material/Finish: Bright Steel