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A low hex flange nut, conforming to GOST 5933-73, is a specialized fastener that differs from a standard nut by having a distinctive slot or "crown" in its head. This slot is designed to accommodate a split pin or other locking device, preventing the nut from loosening due to vibration or load.
Technical Specifications according to GOST 5933-73
GOST 5933-73 defines the precise dimensions, tolerances, materials, and other characteristics of the flange nut.
- Dimensions: The standard specifies the exact thread diameter, nut height, and depth and width of the slot.
- Materials: Typically, the nut is made of carbon steel, providing sufficient strength and wear resistance.
- Accuracy Classes: GOST 5933-73 establishes various accuracy classes that define the permissible deviations of the nut's dimensions from the nominal values.
- Coatings: To protect against corrosion and improve appearance, the nuts can be coated with zinc, cadmium, or other materials.
Advantages of using GOST 5933-73 Nuts
- Secure fastening: Thanks to the slot and the possibility of installing a split pin, the nut provides a reliable connection of parts and prevents self-loosening.
- Versatility: A wide range of sizes allows the use of GOST 5933-73 nuts in various designs.
- Durability: High-quality materials and precise manufacturing ensure a long service life.
- Corrosion resistance: Coatings protect the nut from the effects of aggressive environments.
Applications
Flange nuts are widely used in various industries:
- Mechanical engineering: For fastening parts of machines and mechanisms subjected to vibration loads.
- Automotive industry: For assembling engines, transmissions, and other vehicle components.
- Construction: For connecting metal structures.
- Instrument making: For assembling precision instruments and mechanisms.
