Introduction: The basic concept of flange nuts

Flange nuts, nuts with washers, tooth nuts, hexagonal flange nuts, flange nuts, etc., are mostly used in pipe connections or workpieces that need to increase the nut contact surface.

Chinese name: Flange Nut

Pinyin: fa lan luo mu

Other names: nut with washer, tooth nut, hexagonal flange nut, flange nut, etc.

Function or purpose: mostly used in pipe connections or workpieces that need to increase the nut contact surface

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

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

Surface treatment: generally divided into two kinds of color zinc plating and white zinc plating, and generally cold electro-galvanizing!

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

Thread specifications: refer to the national standard nut thread

National standard code: GB6177-2000