Clock Keys + Winders
We supply a wide range of styles and sizes of clock keys + winders. Including the highest quality traditional British made Keys. Clock keys for Mantle, Carriage, Ansonia, Wall, Bracket, Vienna & Longcase clocks. Also value for money imported keys for trade suppliers.
Which size key does my clock need?
The only accurate way to know is to measure the clocks winding pinion with a vernier gauge. Then select the size key a fraction larger so it fits. Bearing mind clock winding pinions taper. So correct sizing requires measuring further up the pinion from the winding arbour end.
Clock Key Numbering systems and conversions charts
There are many numbering systems and also many conversion charts. Conversions vary and like old worn keys vary. So you cannot always rely upon number systems to provide the correct size required in millimetres. So all the individual keys we sell have the numbers and the exact size in millimetres stated.
For more about finding the right size key for your clock and a conversion chart of our British clock key sizes check out our full clock key details here