... ASME, ASTM, ISO.DIN 2.material: Steel 3.size:M3-M46 M24 galvanized steel fasteners eye nut1.ASME, ASTM, ISO. ... DIN 2.material: Steel 3.size:M3-M464. Materials available : Carbon Steel, Alloy Steel, Stainless Steel, Copper, Nylon, Plastic, etc.5. ... plating, Dacromet, Mechanical Galvanizing, Hot-dip Galvanizing, Dye Blackness, Copper Yellow, etc. M24 galvanized steel fasteners eye nut