Review
Locking screw in accordance with GOST 11074-93 with an internal hexagon, threaded along the entire length and a blunt end. This type of fastener is used for fastening elements when it is not possible to use bolts.
Fastening group of GOST 11074-93
GOST 11074-93 Set screws are divided into the following groups depending on the material of manufacture:
- High-strength fasteners group (fasteners made of high-strength steel)
- Stainless fasteners (made of stainless steel)
Materials of manufacture of the flat-head screw GOST 11074-93
The screw of GOST 11074-93 is made of various materials:
- Steel, which can optionally be coated with zinc
- Or GOST 11074-93 Stainless steel A2 and A4
Application.
Such screws are often used in mechanical engineering, instrumentation and other areas of industrial production. They are commonly used in the assembly and repair of cars and other vehicles, the installation of metal frames, and in furniture production.
The scope of application also directly depends on the material of manufacture and the coating of the product:
- Zinc coating on steel protects against corrosion if the fasteners are to be used in aggressive environments
- Stainless steel, grade A2. The material is non-toxic and corrosion-resistant, which makes it suitable for use in the food and medical industries.
- A4 is the second most popular grade; it also has similar properties to A2, but is more resistant to corrosion in aggressive environments and acids due to the addition of molybdenum.
