The Stainless Steel Metal Lock Nut DIN 980 is a thin hex nut with a prevailing torque feature, designed to provide vibration-resistant fastening without the need for additional locking devices. It is commonly used where space is limited, offering reliable locking performance in thin sheet metal assemblies, machinery, and structural applications.
Manufactured from SS304 (A2) and SS316 (A4) stainless steel, DIN 980 metal lock nuts offer excellent corrosion resistance, mechanical strength, and long-term durability, making them ideal for automotive, machinery, electrical, and industrial applications.
📏 Standard: DIN 980 / ISO Equivalent
🔘 Design: Thin hex nut with prevailing torque (metal locking)
⚙ Material Grades: SS304 (A2), SS316 (A4)
💪 Strength Class: A2-70 / A4-70
🌊 Corrosion Resistance: Excellent – suitable for harsh environments, marine, and outdoor use
🛠 Anti-Loosening Feature: Metal locking provides vibration resistance
📦 Thread Range: M3 – M20 (Metric) / UNC & UNF (Inch)
| Specification | Details |
|---|---|
| Product Type | Metal Lock Nut / Prevailing Torque Nut |
| Standard | DIN 980 |
| Material | Stainless Steel SS304 / SS316 |
| Shape | Thin hexagonal nut with metal locking feature |
| Thread Sizes | M3 – M20 (Metric) / UNC & UNF (Inch) |
| Strength Class | A2-70 / A4-70 |
| Surface Finish | Natural / Passivated |
| Corrosion Resistance | High – rust & chemical resistant |
✔ Automotive & Machinery Assemblies
✔ Electrical Panels & Industrial Equipment
✔ Sheet Metal Assemblies & Fixtures
✔ Marine & Offshore Equipment
✔ Construction & Structural Applications
✔ High-Vibration Environments
✨ Vibration-Resistant Design – metal locking prevents loosening under dynamic loads
✨ Low-Profile & Space-Saving – ideal for assemblies with height constraints
✨ Durable Stainless Steel – corrosion and rust-resistant for long-term performance
✨ Wide Size Availability – metric & inch threads for versatile applications
✨ Standardized Quality – manufactured according to DIN/ISO standards
✨ Reliable & Industrial-Grade – trusted in automotive, marine, and machinery applications
The Stainless Steel Metal Insert Lock Nut DIN 980M is a thin hex nut with an integrated metal locking insert, designed to provide reliable vibration-resistant fastening in assemblies where a standard nut may loosen under dynamic loads. The metal insert ensures secure engagement with the bolt threads, making it reusable while maintaining high torque retention.
Manufactured from SS304 (A2) and SS316 (A4) stainless steel, DIN 980M metal insert lock nuts offer excellent corrosion resistance, mechanical strength, and durability, suitable for automotive, machinery, industrial equipment, and high-vibration applications.
📏 Standard: DIN 980M / ISO Equivalent
🔘 Design: Thin hex nut with integrated metal locking insert
⚙ Material Grades: SS304 (A2), SS316 (A4)
💪 Strength Class: A2-70 / A4-70
🌊 Corrosion Resistance: Excellent – suitable for harsh, marine, and outdoor environments
🛠 Anti-Loosening Feature: Metal insert provides secure locking against vibration
📦 Thread Range: M3 – M20 (Metric) / UNC & UNF (Inch)
| Specification | Details |
|---|---|
| Product Type | Metal Insert Lock Nut / Prevailing Torque Nut |
| Standard | DIN 980M |
| Material | Stainless Steel SS304 / SS316 |
| Shape | Thin hexagonal nut with integrated metal locking insert |
| Thread Sizes | M3 – M20 (Metric) / UNC & UNF (Inch) |
| Strength Class | A2-70 / A4-70 |
| Surface Finish | Natural / Passivated |
| Corrosion Resistance | High – rust & chemical resistant |
✔ Automotive & Machinery Assemblies
✔ Electrical Panels & Industrial Equipment
✔ Sheet Metal & Structural Assemblies
✔ Marine & Offshore Equipment
✔ High-Vibration Machinery & Equipment
✔ Industrial Fastening in Thin Materials
✨ Vibration-Resistant Design – metal insert prevents loosening under dynamic loads
✨ Reusable & Reliable – maintains locking capability over multiple uses
✨ Durable Stainless Steel – corrosion and rust-resistant for long-term performance
✨ Low-Profile & Space-Saving – ideal for assemblies with height constraints
✨ Wide Size Availability – metric & inch threads for versatile applications
✨ Standardized Quality – manufactured according to DIN/ISO standards
