din985 nylon insert lock nut 1.Size M5-M20 2.Material,carbon stee 4. ... -70 3.Certificate,Onsite Check,ISO 4.MOQ,50pcs din985 nylon insert lock nut1.Size M5-M202.Material,carbon stee 4.8, A2 ... Check,ISO4.MOQ,50pcs 5.Product details as below, Productdin985 nylon insert lock nutMaterialStailess steel carbon steel,and so onFinishPassivation,Chromium-Plating,Black ...