Review
A self-contracting nut is a nut used in connection elements that are constantly exposed to dynamic loads, especially vibration, which can cause loosening. Contouring in DIN 980 is achieved due to the design of the hole: it can be a narrowed edge of the hole, or a special metal locking ring, depending on the shape. When used in areas of high temperatures, it is better to choose DIN 980.
Strength class DIN 980
The strength class of a Din 980 nut is the maximum applied force at which the nut begins to fracture. Din 980 nuts are manufactured in strength classes 8 and 10. From strength class 8, the nut is considered high-strength. High-strength Din 980 should be purchased only from trusted suppliers. It is made of alloy steel and such bolts are used for critical projects where, in addition to high loads and static loads, the din 980 nut is subjected to constant vibration. Such nuts will be especially relevant in bridge construction, instrumentation, and in structures that are located near objects subject to vibration.
DIN 980 fastening group
Depending on the material of manufacture, DIN 980 nuts are divided into groups:
- High-strength fasteners - nuts made of steel of strength class 8 and above
- Stainless fasteners - nuts are made of stainless steel of steel grades A2 and A4
Materials for the manufacture of DIN 980 nuts
DIN 980 is made of the following materials
- Steel, which can be coated with hot dip galvanized, yellow galvanized, and black galvanized zinc.
- Stainless steel grades A2 and A4.
Areas of application of DIN 980 nuts
DIN 980 is used in
- mechanical engineering
- construction
- warehouse equipment
- lifting equipment,
- agricultural machinery, tools, etc.
