GOST 22034-76 is a standard that describes threaded studs with an end thread. Studs that comply with this standard have a thread diameter tolerance of 1.25d. This means that the thread diameter can differ from the nominal value by +/- 1.25 times. For example, if the nominal thread diameter of a stud is 10 mm, then the permissible thread diameter can be within 10 mm +/- 1.25 mm, i.e. from 8.75 mm to 11.25 mm.
Strength class of GOST 22034-76
The strength class of a stud according to GOST 22034-76 is the maximum applied force at which the stud begins to fracture. Studs of GOST 22034-76 are manufactured in strength classes from 5.6 to 8.8. From strength class 8.8, the stud is considered high-strength.
Fastening group of GOST 22034-76
Depending on the material of manufacture, studs of GOST 22034-76 are divided into groups:
- Stainless fasteners
- High-strength fasteners
Materials for the manufacture of GOST 22034-76 studs
Studs of GOST 22034-76 are made of the following materials:
- Steel with a strength class of 5.6 to 8.8, which can be additionally coated with zinc. Zinc (Plated) protects against corrosion if the fasteners are to be used in aggressive environments.
- Stainless steel grades A2 and A4. The steel grade allows the fasteners to be used at significant temperature drops and in aggressive and humid environments.
Scope of use of GOST 22034-76 studs
Studs of GOST 22034-76 are used in such industries as automotive, instrumentation, and large studs are also actively used in construction, in the installation of metal structures and wooden elements.
