... Chrome, Dacromet, Cr3+,Cr6+4. Other Material Options for hex nut:Stainless Steel SS201, SS301, SS304, SS316Grade A2-70. A4-80Other Material ... available, Nickle, Zinc Alloy, Brass, etcIn Stock Hex Nut Available ( ... below sizes only)M6, M8, M10, M12, M16, M20, M24Goods in Stock for immediately shipment! Both Carbon Steel ...