Winding Key (#5)

Find the Right Winding Key for Your Clock

Clock keys come in different numbers (e.g # 6 or #10 etc). These numbers represent the size of the winding shaft of your clock, which will in turn tell you which key to purchase. If you don’t know what size key you require you’ll have to measure the thickness of your winding key shaft in your clock using a vernier caliper, then refer to the picture below to purchase the relevant key.

Important Note: make sure to order one size above your measured shaft size. So if your measured shaft size is 2.75mm (Key #2), you should order Key #3.

This brass winding key is labelled as #5, with a winding key shaft size of 3.50mm. It will suit most mechanical clocks. Each key is stamped with the key size and key square dimension.

Please note: Image is for display purposes only, the actual key colour may vary between gold or silver.

Disclaimer:

Whilst we do our best to accurately capture all products to best represent their natural appearance, the colour and finish of this product may vary slightly from the images on our website.