Hex socket cap screw according to ISO 4762 / DIN 912, strength class 8.8, plain (uncoated) surface. Plain steel screws are used in dry, indoor, or controlled environments, and are suitable where parts are later painted, coated, or galvanized. Provides reliable mechanical strength for machinery, fixtures, and general steel assemblies. Available in multiple lengths and variants from SWEBOLT & BOTNIA BOLT.