Kays Fasteners

Castle Nuts

A2 Stainless Steel

Please select your requirements from the drop down lists above

M5
Thread pitch: 0.8mm
Spanner size: 8mm
Overall height: 6mm
Width of slot: 1.4mm

M6
Thread pitch: 1.0mm
Spanner size: 10mm
Overall height: 7.5mm
Width of slot: 2mm

M8
Thread pitch: 1.25mm
Spanner size: 13mm
Overall height: 9.5mm
Width of slot: 2.5mm

M10
Thread pitch: 1.5mm
Spanner size: 17mm
Overall height: 12mm
Width of slot: 2.8mm

M12
Thread pitch: 1.75mm
Spanner size: 19mm
Overall height: 15mm
Width of slot: 3.5mm

M16
Thread pitch: 2.0mm
Spanner size: 24mm
Overall height: 19mm
Width of slot: 4.5mm

M20
Thread pitch: 2.5mm
Spanner size: 30mm
Overall height: 22mm
Width of slot: 4.5mm

  • Castle nuts with slotted turrets.
  • Often used with a cotter pin to prevent loosening.
  • Manufactured to DIN 935.
  • A2 stainless steel for corrosion resistance.
  • All dimensions are subject to manufacturing tolerances.
  • FREE 1st CLASS UK P&P*
  • Pictures are for illustration only. 
  • GET IT FAST - orders placed before 2pm are dispatched the same day (Mon-Fri).


Visit our Ebay shop for a full range of fasteners & fixings:


All items are in stock ready for dispatch.
Same-day dispatch when ordered before 2 pm (Mon-Fri).

Payment through PayPal is preferred as it is then covered by the PayPal payment protection scheme.

Orders paid for by postal orders and cheques will be dispatched when full payment has cleared.

A vat invoice is issued with all orders.

We guarantee to dispatch all orders within 24 hours of cleared payment.

Orders placed at weekends or on a public holiday will be dispatched the next working day.

All items will be posted by Royal Mail first class or express carrier unless stated otherwise.

*Deliveries to some remote post codes may incur additional costs.

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M3, M4, M5, M6, M8.

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