DIN 980 manufactured in accordance with the standard jam nuts, offers a self-locking feature thanks to the tight contact it creates as it passes into the screw thread. Provides secure connections against loosening without the need for other locking elements. High performance in systems operating under vibration and dynamic load. Maintains connection security even under high temperature, mechanical stress and prolonged use.
| Feature | |
| Standard | DIN 980 - Hexagon Nut with Tightening |
| Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Material Quality | 5, 6, 8, 10, 12, A2, A4 |
| Coating | Electrogalvanized (White/Yellow), Hot-Dip Galvanized (HDG), Nickel, Black Oxide, Geomet |
| Tooth Type | Metric Coarse Thread, Metric Fine Thread (optional) |
| Measurement Range | From M10 to M48 |
| Production Method | Cold Forging, Machining |
| Thread Direction | Right-Hand Thread (standard) / Left-Hand Thread (upon request) |
- Vibrating machine and equipment connections
- Automotive sector: Suspension, engine, exhaust and chassis parts
- Agriculture and construction machinery
- Rail systems and rail fasteners
- Wind turbines and power generation systems
- Defense and heavy industry applications
- Conveyor, press, elevator systems
- All dynamic connections where the risk of disassembly must be minimized
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- ISO 45001:2018 Occupational Health and Safety Management System
- EU Declaration of Conformity (PED) certificate (Compliance with the Pressure Equipment Directive)
- Our production processes, DIN, EN, ISO, and ASTM is fully compliant with the standards
- Upon request EN 10204 3.1 certificate is provided
DIN 980 is defined by the German Standards Institute (Deutsches Institut für Normung), clamping (self-locking) hexagon nut standard. Thanks to the deformation created on the thread surface, these nuts create resistance when engaging the bolt or stud and thus prevent loosening. They are used without the use of wires, washers or additional securing elements, especially in vibrating and safety-demanding connections.
Locking effect, is ensured by a specially designed thread tightness inside the nut
Multiple disassembly and assembly operations even retains locking effect
In high vibration environments, provides better performance than standard nuts
ISO 7040 and ISO 10513 is partially compatible with, but structurally different from
DIN 980 jam nuts are manufactured in a variety of materials, such as carbon steel (e.g. in class 5, 8, 10 strength), stainless steel (such as A2/304 and A4/316) and alloy steel. The choice of material should be determined by the environmental conditions, dynamic loads and temperature to which the connection will be exposed. Especially in environments where the risk of loosening is high, the clamping structure provides extra security.
Commonly used materials are as follows:
Carbon steel: It provides low to high strength with grades such as Class 5, 6, 8, 10, 12.
Alloy steel: Systems operating under high temperature and pressure (e.g., with B7/B16 bolts)
Stainless steel: Offers high corrosion resistance with A2 (304) and A4 (316) grades
Brass / Copper alloys: Preferred for electrical conductivity or decorative applications
Thanks to their self-locking feature, DIN 980 jam nuts will not dislodge despite external intervention or vibration. This provides significant advantages over conventional hex nuts in systems where safety is critical.
Typical applications:
Automotive and heavy vehicle industry: Suspension, brake and engine components
Machinery and production lines: Dynamic connections, systems subjected to vibration
Energy and infrastructure projects: Turbine connections, energy transmission systems
Rail systems and transportation: On-road equipment, rail assembly
Construction and steel structure: Critical load-bearing connections
Defense and aerospace: Areas where wire-fixed or torque-controlled mounting is required
DIN 980 jam nuts are primarily preferred in applications requiring high safety, as they provide a more secure and long-lasting connection than standard nuts.
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