SECCARO Lock nut M8, Stainless Steel V2A VA A2, DIN 985 / ISO 10511, Hexagon, 20 Pieces : Amazon.co.uk: DIY & Tools
M14 x 2.00 Coarse Thread DIN 985 Class 10 Nyloc (Nylon Insert Locknut) Standard Medium Carbon Steel Zinc Plated Pk 100: Amazon.com: Industrial & Scientific