... grade 8 UNC and UNF7. Standard hex nut, hex jam nut, 8. heavy hex nut, heavy hex jam nut9. ASTM A194 2H, ... Chrome, Dacromet, Cr3+,Cr6+ Other Material Options for hex nut:Stainless Steel SS201, SS301, SS304, SS316Grade A2- ... 70. A4-80In Stock Hex Nut Available (below sizes only)M6, M8, M10, ... poly pack, small box, color box, blister card options Zinc Plated Carbon Steel Hex Nuts