Hexagon head bolt GOST 7798-70 is used in mechanical engineering, instrument making, and construction as a connection part. Analogs: DIN 931, DIN 933, DIN 960, DIN 961, GOST 15589, GOST 7805, GOST R ISO 4014, GOST R ISO 4017. With DIN 931 (EN ISO 4014) they almost completely coincide. There are minor differences in individual parameters. DIN 933 (EN ISO 4017) is a full-thread bolt. For this reason, the main difference is related to the length of the threaded part. For those dimension types in GOST 7798-70 where the threaded part corresponds to the length of the DIN 933 (EN ISO 4017) bolt, it can be used as a full analog.