Type: Hex head, Square head, Flange head
Standard: DIN, BS, AREMA
Size: above M16
Raw material: Q235. 35# 45# 40Mn2, 20MnSi, 35CrMo, 40 Cr. 42CrMo
Grade: 4.5, 6, 8, 9, 10, 12
Surface Treatments: plain, black, zinc, HDG etc.

Nut is nut and bolt or screw fastening screw together to the function of parts, all production machinery must use an original. There are many types of nut, we have the common national standard, British standard, American standard, day mark nut. The nut according to different materials, the divided into carbon steel, high strength, stainless steel, plastic and so on several big types.

(Hexagon nut) six hexagon nuts and bolts, with the use of screws, fastening parts.