Not sure you've got your sizes correct here? A washing machine tap is usually a 15mm/22mm > 3/4" BSP fitting, not seen one with a 10mm end on iteither. So if you have 10mm cold water pipe, you would need to get a 10mm to 15mm reducer, add a little bit of pipe then add the tap.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local