Carbon Steel Din980 Metal Lock Nut

DIN 980 Lock Nut is also called all metal self-locking nut. There are mainly two types of locking:a. This kind of nut is called 980-v type, and its common forms are as follows: three-point type, oval type and side extrusion type.b. A metal locking plate is embedded in the nut to prevent the locking ring from loosening. This nut is called 980-m

Material: carbon steel

Type: all metal universal torque, hexagon nut

Thread size: M3~M39

Surface treatment: ordinary, black, galvanized, yellow, H.D.G, chrome plated

Grade: 4, 6, 8, 10

DIN 980 mounting method
During installation, the lock nut must be tightened with a tool such as a ratchet wrench. It is recommended that the Stainless Steel Nut be pre greased to prevent the nut from locking during quick installation.
Recommendations for use of DIN 980
The lock nut can be reused, but it is not recommended to disassemble and install it repeatedly. After multiple disassembly and installation, the locking torque of the nut will be significantly reduced (the fifth disassembly is significantly lower than the first disassembly).
Mechanical properties
The mechanical property requirements of all metal lock nuts are the same as those of ordinary nuts. The common grades of carbon steel are generally Grade 8, Grade 10 and Grade 12, while the common grades of stainless steel are Grade 70 and Grade 80.
Among them, the load holding force and hardness requirements of carbon steel nuts shall refer to the standard of ordinary carbon steel nuts, and can refer to the standard ISO 898-1 (Mechanical property requirements of carbon steel nuts) for acceptance. Stainless steel nuts only refer to carbon steel nuts used for load bearing performance, and hardness is not required.
To ensure the locking performance, the lock nut shall refer to the torque requirements for five times of screwing in and out specified in ISO 2320 (Mechanical Performance Requirements for Pre torque Lock Nuts). Ordinary nuts have no such special requirements.