hex nut

Nut can be divided into selflocking nut, clinching nut, fastening nut, welding nut, hex nut, relax nut, slotted nut, rivet nut etc. This classification is divided according nuts' shape. The nut we generally speaking refers to hex nut. We have outer hex nut and inner hex nut, stainless steel hex nut, general hex nut, and copper hex nut, hex thick nut and hex thin nut. The usually used material of nut is 40CR, 45STEEL, 35K, STAINLESS STEEL, Q235 etc. According to hardness, the nut can be classified into Grade 4,Grade 5, Grade 6, Grade 8, Grade 10 and Grade 12. The generally used nut is M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M36, M42, M48 etc.

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