Product Description
Castle Nut Imperial Self Colour 3/8" BSF fixings are slotted hex nut designed for secure mechanical locking in imperial-threaded assemblies.Made from bright mild steel and supplied in self colour (plain finish), it is typically used with a drilled bolt and split pin to resist loosening under vibration or dynamic load.
Ideal for vintage machinery, agricultural equipment, and vehicle restoration, this nut is suitable for indoor use or can be surface-treated for added corrosion resistance.
- Slotted castle nut designed for locking with a split pin
- Imperial thread fits UNC, UNF, BSW, or BSF bolts and axles
- Self colour (plain) bright mild steel ideal for painting or plating
- Common in legacy vehicles, agricultural machinery, and plant fixings
- Used in rotating assemblies, suspension systems, and safety-critical joints
Choose Castle Nut Imperial Self Colour 3/8" BSF for traditional mechanical locking in restoration or industrial applications.
