Nuts are the parts that connect the mechanical equipment closely. Only nuts and bolts of the same specification can be connected together through the inner thread. For example, m4-p0.7 nuts can only be connected with m4-p0.7 series bolts (in nuts, M4 refers to the inner diameter of the nut is about 4mm, 0.7 refers to the distance between the two thread threads is 0.7mm); the same is true for American products, such as 1 / 4-20 nuts can only be connected with 1 /4-20 screws (1 / 4 finger nut is about 0.25 inch in inner diameter, 20 finger nuts have 20 teeth in each inch).


stainless steel
Self locking nut, lock nut, lock nut, four jaw nut
Nut
Screw in the nut safety nut, thin rod screw connecting nut, self-locking hexagon cap nut, special anchor screw nut, hexagon crown thin nut, lifting ring nut. [1]
Fine thread all metal hexagon flange face lock nut, all metal hexagon flange face lock nut, fine thread non-metal insert hexagon flange face lock nut, fine thread hexagon flange face nut
Welding square nut, welding hexagon nut, fastening nut, embedded round nut
Round nut with groove, round nut with hole on side, round nut with hole on end face, small round nut
Round nut, ring nut, butterfly nut

Copper
Copper nut, inlaid copper nut, knurled copper nut, inlaid copper nut, injection copper nut, etc

alloy
Zinc copper alloy nut, etc