Water pump nut

Product Name: Water Pump Nut

Nuts are parts that tightly connect mechanical equipment. Nuts and bolts of the same specification can be connected together through the inner thread.

Nut (nut): generally flat hollow multi-faceted cylindrical structure.

Cap (nut): Mainly used in the automotive industry-cars, trucks, buses, compressors, construction machinery, wind power equipment, agricultural machinery, fasteners, foundry industry, drilling equipment. Nut and nut: The shape of the nut is usually hexagonal, and the inner hole is internal thread, which is used to cooperate with the bolt and tighten the related parts. The nut is a common name, and the standard should be called a "nut". The more common nut is a hexagonal nut.

Hexagon nuts are divided into three types: type I, type II and thin type according to their nominal thickness. Nuts above grade 8 are divided into two types: Type 1 and Type II.

Type I hexagon nuts are the most widely used. Type I nuts are divided into three levels: A, B, and C. Among them, A and B nuts are suitable for machines, equipment and structures with small surface roughness and high precision requirements. Grade C nuts are used for machines, equipment or structures with rough surfaces and low precision requirements; Type II hexagon nuts have a thicker thickness and are mostly used in occasions where assembly and disassembly are often required.

Type I nuts refer to ordinary hexagon nuts with a nominal nut height m≥0.8D. The type and size of the nut should meet the requirements of GB/T6170. The height of type II nut is higher than that of type I nut, and its type and size should conform to GB/T6175. There are two purposes for adding type II nuts: one is to obtain a relatively inexpensive nut that does not require heat treatment by increasing the height of the nut; the other purpose of specifying type II nuts is to obtain a grade 12 nut with better toughness. As the height of the nut increases, the guaranteed stress index can be achieved at a lower quenching and tempering hardness, so the toughness of the nut is increased.