Overview
What is GOST 5915? GOST 5915 (ISO 4032) is the most common hexagonal nut. This nut is used to create high-strength detachable joints of metal parts and is used in conjunction with bolts and screws. The GOST 5915 nut has six faces with a thread (metric or inch) on the inside. To fasten GOST 5915 nuts, wrenches of the appropriate size are used.
Strength class of GOST 5915
Nuts of GOST 5915 are manufactured in strength classes 5, 6, 8, 10, 12. A strength class is a 100-fold reduction in the minimum tensile strength of a bolt, which can be paired with a metal product to withstand normal loads. That is, even the minimum strength class of a DIN 934 nut can withstand more than 500 MPa.
Fastening group GOST 5915
Depending on the material of manufacture, nuts of GOST 5915 are divided into:
- High-strength fasteners
- Stainless steel fasteners
- Polyamide fasteners
- Brass fasteners
- Copper fasteners
- Aluminum fasteners
Materials for the manufacture of nuts GOST 5915
Nut GOST 5915 is widely used in construction equipment: bulldozers, cranes, excavators; power and industrial units: turbines, pumps, electric generators, metalworking machines; freight transport and agricultural machinery: trailers, semi-trailers, tractors, tractors. Nuts of GOST 5915 are used in conjunction with bolts or screws to create a reliable threaded connection.
The scope of application also directly depends on the material of the nut:
- Galvanized steel provides good corrosion protection if the fastener is to be used in an aggressive environment.
- Brass is used if the system is subjected to frequent dynamic, vibration loads.
- Stainless steel allows the fasteners to be used at significant temperature changes and in aggressive and humid environments.
- Polyamide withstands mechanical shocks, does not crack or break at the permissible load factor.
- Copper is resistant to corrosion in dry air, fresh and salt water, alkaline solutions, organic acids, alcohols, and phenolic resins.
- Aluminum, due to the deformation of mild steel, seals the joint well.
