Product Category: Flange Nuts

Product Origin: Wenzhou

Operation Model: Manufacturing and Processing

Main Products: Card springs, retaining rings; Bolts; Washers; Nuts

Principle: Adhere to honesty, trust, mutual benefits, and joint development.

Mission: Continuous Innovation and Perfection

Application: Automotive Industry, Mechanical Manufacturing, Pneumatic Tools, Furniture Hardware, etc.

The external thread of the GB6177 flange spline nut should be machined or rolled according to GB196 standards before hot-dip galvanizing, while the internal thread can be processed before or after hot-dip galvanizing. However, in practical applications, customers often require both internal and external threads to be zinc-plated. Therefore, various measures are taken to address the hot-dip galvanizing issue for threaded mating parts. The dimensions and thread specifications of the flange nut are basically the same as those of a standard hex nut, but unlike the hex nut, the flange nut is a one-piece gasket and nut assembly, and it features anti-slip teeth below, which increases the contact area between the nut and the workpiece. Compared to the combination of a regular nut with a washer, it is more secure and has greater tensile strength.

With the rapid development of China's power and transportation sectors, the growth of GB6177 flanged spline nut hot-dip galvanizing will undoubtedly be promoted. Therefore, it is of great importance to develop automated centrifugal casting equipment, improve the hot-dip galvanizing process for GB6177 flanged spline nuts, and enhance the quality of the galvanizing coating. The high operating temperature of hot-dip galvanizing can reduce the mechanical strength of high-strength flanged nuts. After hot-dip galvanizing, the strength of some threads on 8.8-grade bolts is below the standard requirements; for bolts with a grade above 9.8, the strength after hot-dip galvanizing generally cannot meet the requirements.