Grade 12.9 ISO7379 allen head shoulder screw

Main uses:Plug screws (ISO7379) are also called allen head shoulder screw. Plug screws are used in conjunction with bolts and tie rods, and are mainly used as mould fittings for controlling the mould opening stroke between the mould seating plate, runner pusher plate and mould template in a three-plate mould. Because it can be set to the parting surface of the mould, it can make the mould design smaller. These products have high hardness, good toughness, wear resistance and heat resistance, suitable for precision moulds, which can significantly improve their service life, especially the thermal deformation of precision moulds has been effectively controlled, suitable for moulds in high temperature operating environments.