All Metal Lock Nut (DIN 980 / Stover Lock Nut)
All-metal lock nuts use a deformed top section (DIN 980V) or a spring-tooth locking element to generate prevailing torque without any plastic insert. They are suitable for high-temperature, high-vibration applications where nylon would melt.
Specifications
| Standards | DIN 980 (M = metric coarse), DIN 980V (deformed top) |
|---|---|
| Property Class | 8, 10 |
| Size Range | M3 – M30 |
| Temperature Limit | Up to typical bolt material limit (300 °C+) |
| Surface Finish | Plain, Zinc plated, Black |
Frequently Asked Questions
How do all-metal lock nuts maintain locking torque?
DIN 980 nuts have a slightly deformed (oval or pinched) section at one end of the threads. As the nut is threaded onto a bolt, the deformed thread distorts elastically, generating constant friction along the engagement that resists vibration loosening.
Need a quote on All Metal Lock Nut?
Send us your specifications, target quantity, and destination port. We will respond within 24 hours with sourceable options and indicative pricing.
Get a Quote