What Is a DIN 980 All-Metal Lock Nut?
DIN 980 All-Metal Lock Nuts
ISO Equivalent: ISO 7719 | Prevailing Torque Metal Lock Nuts
DIN 980 specifies all-metal prevailing torque hex nuts with a deformed top section that grips the bolt threads. Unlike nylon lock nuts, these can withstand high temperatures and are reusable for multiple assembly cycles.
Quick Specifications
Type
All-Metal Lock
Locking Method
Deformed Thread
Temp Range
Up to 300°C
Property Class
8, 10, 12
ISO Equivalent
ISO 7719
Dimension Chart
| Size | Pitch (mm) | Wrench Size | Height |
|---|---|---|---|
| M5 | 0.8 | 8 mm | 5.1 mm |
| M6 | 1.0 | 10 mm | 6.0 mm |
| M8 | 1.25 | 13 mm | 8.0 mm |
| M10 | 1.5 | 16 mm | 10.0 mm |
| M12 | 1.75 | 18 mm | 12.0 mm |
| M16 | 2.0 | 24 mm | 16.0 mm |
| M20 | 2.5 | 30 mm | 20.0 mm |
Key Advantages
🔥
High Temperature
All-metal design works up to 300°C — ideal for engines, exhaust, and industrial heat applications.
🔄
Reusable
Can be removed and reinstalled multiple times while maintaining locking torque.
🛡️
Chemical Resistant
No nylon insert means full resistance to oils, solvents, and fuels.
💡 DIN 980 vs ISO 7719
Fully interchangeable — Both specify all-metal prevailing torque nuts with identical dimensions and performance requirements.
Shop DIN 980 All-Metal Lock Nuts
High-temperature locking nuts for demanding applications. Class 8, 10, 12 available.
Browse Lock Nuts