GOST 21331-75 Knurled screw with straight spline

   GOST 21331-75 is the German standard for knurled and straight slotted screws. These screws are commonly used to connect parts in mechanical and electronic devices. Knurled and straight slotted screws have a special design that allows them to attach to parts with great strength. They have a straight slot, which makes it easy to tighten the screws with a suitable tool. The knurling on the screw is used to provide additional strength and stability of the screw during tightening.

Fastening group GOST 21331-75

     Screws in accordance with GOST 21331-75 belong to the stainless steel fasteners group. 

Materials for the manufacture of GOST 21331-75 screws

     Screws of GOST 21331-75 are made of stainless steel. Steel grade A1 allows the fasteners to be used at significant temperature drops and in aggressive and humid environments.

Areas of application of GOST 21331-75 screws

    Knurled and straight slotted screws of GOST 21331-75 are used in a variety of mechanical and electronic devices to connect parts. For example, they can be used in the automotive industry to connect engine parts, in the manufacture of electronic devices such as computers and telephones, to connect circuit boards, and in various industrial machinery and equipment.