GOST 1491-80 screw This type of stainless steel fastener looks like an ordinary metal rod with a head at one end that transmits torque and an external thread at the other end.
Strength class GOST 1491-80
Screws of GOST 1491-80 are made of steel of strength class 4.8.
Fastening group of GOST 1491-80
Depending on the material of manufacture, screws of GOST 1491-80 are divided into groups:
- Brass fasteners
- Stainless steel fasteners
- Polyamide fasteners
Materials of manufacture of GOST 1491-80 screws
GOST 1491-80 is made from a variety of materials:
- Steel, which can be additionally coated with zinc and yellow zinc
- Brass
- Polyamide
- Stainless steel A1, A2, A4
Field of application
It is widely used in mechanical engineering, instrumentation, construction, and the automotive industry.
The scope of application also directly depends on the material of manufacture and the coating of the screw:
- The zinc coating on steel protects against corrosion if the fastener is to be used in aggressive environments.
- Brass screws are used if the system is subjected to frequent dynamic, vibration, and cyclic loads.
- Stainless steel allows the fasteners to be used at significant temperature fluctuations and in aggressive and humid environments.
The dimensional grid can be found in GOST 1491-80 pdf.
