DIN 980V All Metal Lock Nuts

DIN 980V All Metal Lock Nuts are designed to maintain a secure threaded connection without relying on a nylon insert or other non-metallic locking element. The all-metal construction creates prevailing torque on the mating thread, helping the nut resist unwanted rotation once installed. This makes DIN 980V particularly useful for assemblies exposed to vibration, repeated movement, temperature changes, or mechanical loads where a conventional hex nut may gradually lose its clamping effect. The locking function is integrated into the metal nut itself, making it suitable for applications where an all-metal fastening solution is preferred.

Compared with nylon insert lock nuts such as DIN 985, DIN 980V does not depend on a polymer insert for its locking action. This can make an all-metal design more appropriate for applications where higher temperatures, certain chemicals, or a fully metallic fastening system need to be considered. DIN 980V lock nuts are available in carbon steel, alloy steel, and stainless steel, with different finishes and property classes depending on the application. When selecting the nut, the thread size, mating bolt, required prevailing torque, material compatibility, and service temperature should be considered together.

Specification:

DIN980V Prevailing Torque Three-Point Locking Hexagon Nuts are a type of all-metal self-locking nut manufactured according to DIN standards. Unlike nylon insert lock nuts, these nuts achieve reliable locking performance through three-point metal deformation on the bearing face, creating prevailing torque and preventing loosening caused by vibration or dynamic loads. The hexagonal design allows easy installation with standard tools, while the all-metal construction provides excellent temperature resistance and durability in demanding environments.

The all-metal construction makes DIN 980V suitable for applications where a non-metallic locking insert is undesirable, including assemblies exposed to elevated temperatures or certain operating environments. However, the actual service temperature, material grade, coating, and required locking performance should be considered before selection.

Dimension Chart of DIN 980V All Metal Lock Nuts:

The DIN 980V dimension chart provides the main dimensions required to select an all-metal lock nut, including thread diameter, pitch, across-flats width, nut height, and other relevant dimensions. These measurements should be matched with the mating bolt or stud to ensure correct thread engagement and proper installation. Because DIN 980V uses a metal prevailing-torque locking design, the nut’s internal thread and locking section are important functional features in addition to the standard hex nut dimensions. The correct thread size and pitch should always be confirmed before ordering.