Hex socket countersunk screws according to ISO 10642 / DIN 7991 in steel. The countersunk head allows the screw to sit flush with the surface, creating a compact and smooth assembly. The range includes strength grades 8.8 and 10.9, with finishes such as zinc-plated (ZN) and plain. Used where a recessed installation and low profile are required. Subcategories also include inch-threaded variants according to ANSI B18.3 UNC and UNF. Available in multiple dimensions and lengths from SWEBOLT & BOTNIA BOLT.