Plumbing Supplies
Stairville Ring Nut M10 high-strength
Stairville Ring Nut M10 high-strength, Ring Nut, High-strength ring nut based on DIN 580, Thread: M10, Quality grade 8, WLL 1000 kg, MBL > 4000 kg, Colour: Red
https://www.bizrate.co.uk/plumbingsupplies/stairville-ring-nut-m10-high-strength-oid30200792014.html