Plain steel set screw cup point grade 45-H DIN 916 is a set screw conforming to the DIN 916 standard. Produced in untreated steel and has a cup (hollow) point. The set screw is used to fasten and lock threads in materials by being screwed into threaded holes. An Allen key is used during assembly. The set screw has a strength class of 45-H, which indicates a high tensile strength and reliability. This type of set screw is typically used in industrial applications.