Plumbing Supplies
Stairville Ring Nut M12 high-strength
Stairville Ring Nut M12 high-strength, Ring Nut, High-strength ring nut based on DIN 580, Thread: M12, Quality grade 8, WLL 1600 kg, MBL > 6400 kg, Colour: Red
https://www.bizrate.co.uk/plumbingsupplies/stairville-ring-nut-m12-high-strength-oid30200792015.html