Steel Coupling Nut 8

ISO 898-2 property class 8 hexagon coupling (extension) nuts to DIN 6334. A long internally threaded hex sleeve — typically about 3d — joining two lengths of class 8.8 threaded rod or stud. Metric coarse, listed M5–M20. Keep coupler, rod, and nuts in the same property class.

Specify on machinery anchoring, pipe supports, and long fabricated studs in 8.8. Keep coupler, rod, and nuts in the same property class. Coupling nuts do not replace a properly designed turnbuckle where adjustment and inspection are required.

Request a quote with sizes, quantities, finish, and delivery country. Matching 8.8 rod and class 8 nuts can be included.