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
M14 Self-Locking Nuts (Pack of 5) Steel Hexagonal Stop Nuts Clamping Nuts Self-Locking DIN 985 ISO 10511 (14 mm Diameter) : Amazon.de: DIY & Tools