The screw with a secret head of DIN 965
DIN 965 corresponds to GOST 17475, ISO 7046
The screw with a secret head, crosswise shliyets and a full carving are used in construction, mechanical engineering, industrial and production branches together with washers, nuts of the corresponding sizes.
Material: Steel: 4.8
Steel with a covering: galvanic galvanization
Stainless steel: A2, A4