Classification of fastener flange nuts

Classification of flange nuts

There are two types of flange nuts. Each part with anti-loose and non-toothed teeth has staggered cams. Since the internal wedge design has a slope angle larger than the nut angle of the bolt, this combination is tightly bitten into one. Overall, the flange face nut has a large surface contact area with the connector, which determines its use. When the vibration occurs, the convex portions of the locknut are displaced from each other, and the lifting tension is generated, thereby achieving a perfect anti-loosening effect. The flange nut surface treatment is blackened, white zinc plated, blue zinc white plated, and zinc plated.

When the two parts connected by bolts and nuts are used for the convenience of connection, the bolt holes of one part are usually processed very large, so that it is very convenient to find the two parts, and the two holes can be connected without being accurate. The bolt hole is enlarged, which will inevitably lead to a reduction in the contact area between the ordinary nut and the connected member, so that the flange nut can be used to avoid this.

Flange nut basic standard

Function or use: mostly used on pipes connected or parts that need to increase the contact surface of the nut

Material: A3 low carbon steel 35K high speed steel wire 45# steel 40CR 35Crmoa

Hardness level: 4 levels 5 levels 6 levels 8 levels 10 levels 12 levels

Surface treatment: generally divided into two kinds of zinc plating and white zinc plating, and generally cold electroplated zinc

Main specifications: M5 M6 M8 M10 M12 M16 M20 (M20 and above specifications and M14 M18 flange nuts are not commonly used)