William Wilson - Express 15mm Angle Lockshield Radiator Valve Chrome
Myson FULLFLOW Pair of Replacement Spare Wheelhead and Lockshield BS2767-10 Radiator Valve White Plastic Head top CAPS only : Amazon.co.uk: DIY & Tools
2 x Replacement White Lockshield Radiator Valve Wheel Heads Handles Caps Only | eBay