din929 hex weld nut 1.Size M3-M16 2.Material,carbon stee 4.8, 3.Certificate,Onsite Check,ISO 4.MOQ, ... 50pcs din929 hex weld nut1.Size M3-M162.Material,carbon stee 4.8,3.Certificate,Onsite Check,ISO4.MOQ,50pcs5 ... .Product details as below, Productdin929 hex weld nutMaterialStailess steel carbon steel,and so onFinishself color, zinc plated( do not advice ...