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Stainless Steel A4 70 SS304 Hexagon Full Nuts DIN 934 Hex Nut. Complies strictly with DIN 934 German standard, highly interchangeable with DIN standard bolts. Made of SS304 stainless steel, A4-70 grade, tensile strength reaches 700MPa. Excellent resistance to rust, salt spray and weak acid, suitable for damp and corrosive environments. Precision internal thread, smooth screwing, stable locking, anti-loosening under vibration. Complete metric sizes from M3 to M24, customized sizes are acceptable. Clear surface marking (DIN934/A4-70/SS304) for easy identification and quality traceability. Standard hexagonal shape, convenient installation with wrench, socket and automatic tools.