Torque Hex Nut More Than 10 Years Produce Expricence Factory

Nuts are parts that closely connect mechanical equipment. Nuts and bolts of the same specification can only 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, and 0.7 refers to the distance between two threads is 0.7mm); American products are the same. For example, 1/4-20 nut can only be matched with 1/4-20 screw (1/4 refers to the inner diameter of the nut is about 0.25 inch, and 20 refers to 20 teeth in each inch).