Hexagon nut, low profile, with clamping piece (non-metal insert) fine thread

• Hexagon nuts with lower nominal height complying with DIN 985 cannot support test loads as per ISO 898-2
• The strength class designation has two vertical bars added before and after the strength code to differentiate.

DIN 985 has been withdrawn and replaced by ISO 10511. There is some limited similarity (thread M7, M18, M22, M27, M33 and threads with nominal diameter > M36 removed | Fine thread removed | Nut height changed | Width across flats changed for threads M10, M12 and M14 to 16, 18 and 21 mm | Strength classes changed to 04 and 05).