SWEBOLT & BOTNIA BOLT supply threaded rods according to DIN 976, strength class 8.8, with a plain (untreated) surface. Manufactured from medium-carbon steel in compliance with ISO 898-1, these rods provide increased strength and reliability for demanding industrial and structural applications. The untreated finish allows for flexibility in machining or later surface treatment. Commonly used in machinery, construction, and maintenance. Supplied in standard 1–3 m lengths or cut to length with CE-marking. EN 10204 3.1 material certificates available upon request.